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Dr. Sebastian A. Echeverri, PhD

@spiderdaynightlive.bsky.social
8K followers 1.7K following 1.2K posts

Your friendly neighborhood spider scientist!|ADHD & autistic|Cohost of the BBC Earth Podcast|Designed Crash Course Zoology|Find me across the web @ spiderdaynightlive.carrd.co

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Reposted by Dr. Sebastian A. Echeverri, PhD
Arachtober @arachtober.bsky.social · 01/10/2026
For #Arachtober 1st, an image I have been saving for 11 months. This encounter was exciting because Pirate Spiders do not weave orb webs. They commandeer other spiders' webs. She likely ate the resident. This was the first I have seen in a web. Pirate Spider (Mimetidae) #macrophotography #spider
Small white and tan spider in an orb web.
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Reposted by Dr. Sebastian A. Echeverri, PhD
Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 26/09/2026
Pelegrina tillandsiae, a salticid species so named because they live their entire lives in Spanish moss (Tillandsia usneoides). A fellow naturalist in Georgia introduced me to these pale children today. We love a highly specialized creature 🤍 #EmotionalSupportSpood 🧪
Pale grey jumping spider with faded brown stripes, chilling on my bright orange sleeve The creature running across my hand
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Reposted by Dr. Sebastian A. Echeverri, PhD
Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 30/09/2026
Mr Attidops cinctipes, in a lovely little mossy crevice in magnolia bark. Very small 🤎 #EmotionalSupportSpood
Lumpy brown jumping spider with stripy stubby legs, peering at you from a mossy crevice
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The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 28/09/2026
We're providing multiple $5k awards for invertebrate conservation research! 🦋 xerces.org/dewind - work with a clear connection to butterfly & moth conservation 🪲 xerces.org/bandrosky - work directly relevant to ANY invert in decline 🧑🏽‍🔬 Eligibility: Current grad or undergrad student 🗓 Deadline: Dec 1
“Applications are Open for Xerces’ 2027 Student Research Awards. Apply by December 1”. University of California Davis Students conduct plant pollinator interaction research on a native plant.
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Reposted by Dr. Sebastian A. Echeverri, PhD
The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 17/09/2026
Every year we make the case for keeping leaves, branches, & plant stems in your yard. Bugs need them for shelter! That’s not to say you can’t tidy up: rake leaves into garden beds, around trees, or just in a pile out of the way. All we ask is that you #LeaveTheLeaves! 🍂🐝 xerces.org/blog/leave-t...
xerces.org
Leave the Leaves!
One of the most valuable ways to support pollinators and other invertebrates is to provide them with the shelter they need to survive the winter. Thankfully, all you need to do is do less yard work.
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Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 20/09/2026
Reposting this would be very helpful. We're having a tough month at Skype a Scientist between much of my energy being devoted to Academy of Natural Sciences stuff. I need help!!
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Russell Garwood @russellgarwood.co.uk · 15/09/2026
Interested in how species diversity is split between major animal groups? Here is the infographic for you! 🧪⚒️🦀🦑 #evosky
An infographic showing the number of described and estimated species for major animal groups. There are more insects than anything else. Of the remaining groups, arachnids and nematodes are the most diverse.
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The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 04/09/2026
Join us for the first in a 3-part series all about native bees in the mid-Atlantic! You’ll discover the many bees that call this region home, how they live their lives, & the work they do as pollinators. 🗓️Sep 16 at 4pm PT / 7pm ET 🔗Register for this free event: lp.constantcontactpages.com/cu/RPe2q4Q
“Bees of the Garden State: Biology & Natural History of New Jersey's Native Bees” A mining bee hovering above the ground.
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Reposted by Dr. Sebastian A. Echeverri, PhD
Gwen Pearson @bug-gwen.bsky.social · 08/09/2026
I have been OBSESSED with bluetooth tracking monarchs, so here is a fun little video about how @xercessociety.bsky.social and Florida Museum Natural History tag a monarch. (1/3) www.youtube.com/watch?v=F8wz...
youtube.com
Monarch Butterfly Migration Mysteries at the University Florida
YouTube video by University of Florida
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Reposted by Dr. Sebastian A. Echeverri, PhD
The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 03/09/2026
Want to learn more about each bumble bee you meet? We’ve put together a guide to the differences between bumble bee queens, workers, and males! 🐝🔍 Learn what to look for ⤵️ xerces.org/blog/how-to-...
xerces.org
How to Tell Apart Bumble Bee Males, Workers, and Queens
Once you learn how to recognize a bumble bee, you may wonder whether you are encountering a queen, female worker, or a male bumble bee. With a little practice, you can learn to tell them apart!
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Aleksandra Vaca @transiticsnews.com · 02/09/2026
1. Anti-trans Democrat Seth Moulton just lost his Senate primary in a LANDSLIDE to outspoken trans ally Ed Markey. To Moulton, trans kids were a liability the Democratic Party needed to abandon. But to Massachusetts voters, the only liabilities are Democrats like him.
transiticsnews.com
Anti-Trans Dem Seth Moulton Loses Senate Primary to Outspoken Trans Ally Ed Markey in a Landslide
To Seth Moulton, trans kids were a liability the Democratic Party needed to abandon. But to Massachusetts voters, the only liabilities are Democrats like him.
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Ash @santanaelchan.bsky.social · 01/09/2026
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franz @franzanth.bsky.social · 29/08/2026
We present: The Art of #InverteFest - August 2026 Edition A digital art book showcasing the work of 100 artists, in celebration of overlooked invertebrate fauna. Thank you to the artists who contributed to our book! Download & submit to the next edition: invertefest.com/#artbook #Art #SciArt
a promo image showing various pages from the book, each page showcasing different animals like a mantis, trilobite, cephalopod, beetle grub, tick, among others. the art featured shows a range of different medium, including 3D, paper cutout, pixel art, and so on.
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Anime NYC @animenyc.bsky.social · 20/08/2026
My convention's anime My tastes are weeb WE GOT A LETTER FROM MAMDANI CAN YOU BELIEVE We are honored to have received this welcome letter from @nycmayor! Anime NYC starts TODAY!
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Fossillocator @fossillocator.bsky.social · 10/08/2026
And this encourages locals to catch more sea turtles to sell them to people who want to set them free, much like birds and things at other places
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Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 10/08/2026
Found a silly swamp titi tree covered with a bunch of tiny Enchenopa treehoppers I'd never seen before, just absolutely perfect curvy thorny lumps. Made my day. They might even be an undescribed species?? *refreshing iNat a normal number of times per hour*
Silly dark brown and black treehopper with a sweeping horn curved forward at the tip. Perched on a twig Another individual, just chilling on the underside of a green leaf Wider view of the 1st individual, showing another beside them on the twig.
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Frank Ashwood @frankashwood.bsky.social · 09/08/2026
Less than 3 weeks to go until the UK release of my debut book THE WORLD BENEATH OUR FEET! And only a month later, it'll hit bookshops all across the US and Canada 🥰 Reserve your copy today, and come join me on an awe-inspiring journey into the mysterious world of soil! 🪱🧪 #TheWorldBeneathOurFeet
A photograph of the hardcover copy of my book 'the world beneath our feet' laying on some brown autumn leaves on the ground.
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Gobbo, Allegedly MILF @missbarbiet.bsky.social · 06/08/2026
my sons' school started using AI this year and both of them had to go to each of their teachers with a presentation about blatantly obvious falsehoods in the curriculum. not even counting my youngest's math teacher using it for grading. he had to get EVERY assignment regraded because it was so bad
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Robin Hayward 🌳 🏳️‍⚧️ @canopyrobin.com · 06/08/2026
If you'd like to directly help a trans person (me) pay for her transition while buying a pride or pronoun badge, this is your frequent reminder that I'm selling all of these designs at canopyrobin.etsy.com to afford gender affirming care 🏳️‍⚧️
Robin, next to over 150 different pride pin designs. Please forgive me for not describing all of them. Theyre mostly nature themed. There are plants and frogs and birds and stuff.
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Julien Kimmig @jkimmig.bsky.social · 04/08/2026
Welcome to the CAMBRIAN FECAL REVOLUTION. We didn't name it the Cambrian fecal explosion for obvious reasons. I'm happy to share this paper on fecal matter and its role in Cambrian ecosystems. So if you want to read a really shitty paper (50 days free access): authors.elsevier.com/a/1nYg8cZ3X7...
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Petra Korlević @petrathepostdoc.bsky.social · 04/08/2026
the banner changes as more goobies are revealed! with a little sneak peak of tomorrow's invert's BUTT #SciArt #InvertebrateOfTheYear www.theguardian.com/environment/...
theguardian.com
Revealed: the top 10 invertebrates of the year
At last! It’s time for our invertebrate of the year competition as voted for by you. Today, the immortal jellyfish – come back on Wednesday to find out who else made the top 10
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Alex Wild @alexwild.bsky.social · 04/08/2026
I don’t know what to make of supposed “news” outlets like Reuters that report on victims of U.S. foreign policy by not mentioning the cause. To leave the impression that Cuba is failing for no reason, instead of being blockaded, is basically US propaganda. Why trust Reuters?
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Alex Wild @alexwild.bsky.social · 03/08/2026
This is going to turn universities into some of the most tired and uninspiring spaces you've ever experienced.
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Marie Cerda @primalux.thedeadbird.club · 03/08/2026
Awful. Also people from El Salvador are Salvadoran, not El Salvadoran.
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Evelyndroid's Aperture Science and Bugge-Finding 🏳️‍⚧️🕷️ @apsciencebylyn.bsky.social · 03/08/2026
Yeah, I confess I have to get regular dopamine hits When I gently sweep aside a clump of grass and peer into the depths below and a tiny salticid peers back 😍
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Reposted by Dr. Sebastian A. Echeverri, PhD
Linda Birkin @ljbees.bsky.social · 03/08/2026
I've been asked a few times this summer why the wasps all seem to be on the small side (I assumed lack of prey, plus heat stress meaning producing workers ASAP to minimum size thresholds). Great article from @waspwoman.bsky.social going into detail on this: theconversation.com/where-have-a...
theconversation.com
Where have all the wasps gone this summer?
And why you should let them share your picnic ham and jam.
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Amazing Digital Carcass @amagire.bsky.social · 03/08/2026
chatgpt is giving regular people the brain rot that was previously only available to billionaire CEOs. we've condensed decades of being surrounded exclusively by people who can't say "no, that's stupid" into a pill form
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Reposted by Dr. Sebastian A. Echeverri, PhD
s. e. smith @sesmith.lol · 03/08/2026
15% of people in the US, most rural, rely on wells for drinking water and there's a water quality crisis that's going largely unregulated, and unreported. (No one's out here checking wells for quality and safety and overseeing water quality as with municipal water supplies.)
barnraisingmedia.com
Is Sludge Poisoning Your Well?
The start of a nightmare William Casey Crump, long-time resident, landowner and chairperson of the Stella town board, thinks back on those first days when state testing revealed the contamination. “Wh...
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Reposted by Dr. Sebastian A. Echeverri, PhD
Marc A. Milne @forthespiders.bsky.social · 20/07/2026
It may be surprising to some that there are thousands of undescribed species just sitting in museums awaiting description. One of the main reasons this problem exists is that taxonomy is undervalued and underfunded, a trend that coincides with the devaluing of studies on natural history.
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Sarah Taber @sarahtaber.bsky.social · 31/07/2026
Yeah so NYT asked me ~2 yrs ago to write an op-ed about how the Colorado is running dry, & what we should do to keep this exact thing from happening. I said "There's only one real answer. Bill farmers by how much water they use. Duh." NYT editorial staff freaked tf out & cancelled the piece.
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Eileen Clancy 🧿 @clancyny.bsky.social · 31/07/2026
Ameaka Fatima Nkempu, a Johns Hopkins University researcher in public health, was detained by ICE while boarding a domestic flight. She says she is Cameroonian in a Medium article that she authored. As of Thursday morning, the ICE Online Detainee Locator did not list where she was being held.
Studio photo of a Black African women wearing a beautiful dress in a printed fabric.

Caption:
Ameaka Fatima Nkempu, Johns Hopkins public health
researcher, was detained by immigration agents while
boarding a domestic flight this week. (Johns Hopkins
University)
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The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 31/07/2026
Welcome to our new #PlantsForMonarchs tool! Browse native plants by location, filter by plant type, growing conditions, & more, and find local or online suppliers that have those plants for sale! 🦋🌼👀 ➡️ plantsformonarchs.org
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jamelle @jamellebouie.net · 25/07/2026
not really surprised to learn that terminal stupidity and racism is the reason i can’t walk into a CVS and just buy a toothbrush without flagging down the one person who might be in the store dannykatch.substack.com/p/we-used-to...
dannykatch.substack.com
We used to be able to buy things in this country
Locking up toothpaste was a warning sign that our executive class was crazy
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The Xylom @thexylom.com · 25/07/2026
NEW: Myanmar's civil war has made essential items, including menstrual products, increasingly out of reach for women in conflict-affected areas. "I use the same cloth shared by around six girls here and hide that in a small box. Privacy is nowhere now," says 23-year-old displaced student Shwe Sin.
thexylom.com
‘Who Thinks of Pads in the Middle of Airstrikes?’: Myanmar Women Fight for Menstrual Dignity
“Targeting menstrual products might seem small compared to bombings and executions, but it is a serious threat to women survivors of war who need menstrual supplies to stay healthy. This has become a…
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Kathleen Bachynski @bachynski.bsky.social · 25/07/2026
The scientist who identified this gene in the first place calls this profoundly misguided. “Using SRY to establish biological sex is wrong because all it tells you is whether or not the gene is present. It does not tell you…whether testosterone is produced &if so, whether it can be used by the body”
19thnews.org
Tennis is the first major women's sports league to require genetic testing
This policy impacts all women; and most other women’s leagues aren’t taking the plunge.
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Paul Bleicher @pbleic.bsky.social · 24/07/2026
Astonishing. RFK Jr. adds 8 members to a 6 member FDA advisory panel. 6 of them were sellers of peptides, and the 7th a compounding pharmacist. In an 8-6 vote with all 8 votes coming from these new panel members, the panel approved 4 peptides against the objections of FDA scientists.
nytimes.com
FDA Panel Supports Lifting Restrictions on Four Peptides (Gift Article)
In an all-day hearing, the agency’s scientists argued against allowing broad access to unproven drugs that the agency had banned three years ago.
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Center for Biological Diversity @biologicaldiversity.org · 21/07/2026
We just filed a request in federal court to challenge the Trump administration’s axing of a rule that protects plants and animals listed as threatened under the ESA. The “blanket rule” provided automatic protections for threatened wildlife unless officials developed a specific rule for the species.
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mossworm.bsky.social @mossworm.bsky.social · 21/07/2026
I could never play Fallout 4, because the protagonist is voiced, and says "what the hell" upon seeing the giant roaches. This is inaccurate, I would be overjoyed and pick one up immediately
Radroach from the Fallout series is a dusty brown cockroach about the size of a cat
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s. e. smith @sesmith.lol · 21/07/2026
I have been WAITING for a story talking about how the current war on immigrants affects immigrant caregivers, rather than the people who work for. Really appreciate this breakdown on the personal, social, financial, political precarity of care work because it is so undervalued and disrespected.
prospect.org
The Crisis of Care Work - The American Prospect
The end of Temporary Protected Status and Trump’s budget cuts make a bad situation worse.
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Dr. Sebastian A. Echeverri, PhD @spiderdaynightlive.bsky.social · 20/07/2026
#scicommjobs
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Robin Hayward 🌳 🏳️‍⚧️ @canopyrobin.com · 06/07/2026
Just realised it's graduation season so I should probably share these cool pins I make again. They make great gifts and help to fund my transition canopyrobin.etsy.com/listing/1841...
it's dr actually pins in nonbinary, trans, agender, genderqueer, genderfluid, bigender, intersex, lgbtq, lesbian, black, white, hot pink, purple, dark green, light green, light blue, and light pink
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Robin Hayward 🌳 🏳️‍⚧️ @canopyrobin.com · 01/07/2026
This month I got 3.3% closer to my transition fundraising goal. If I manage the same in July, I could be 20% of the way there!!
a progress bar in trans colours, showing 16.7%
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Erin Reed @erininthemorning.com · 17/07/2026
The funny thing is, this gambit never works. Republican politicians and orgs are trans eliminationsit - there is no amount of capitulation that works. She will get the same ads run against her, and all she will have done by taking this position is to alienate a meaningful percentage of her base.
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The Xerces Society for Invertebrate Conservation @xercessociety.bsky.social · 15/07/2026
🎯🦋 Save the date for the 10th annual International Monarch Monitoring Blitz! Participation is easy. From July 31st to August 9th: 🌳 Go outside 🦋 Search for milkweed 🐛 Look for eggs, caterpillars, chrysalises and butterflies 🔎 Share your observations! Learn more today 👉 www.cec.org/news/monarch...
“Save the date! International Monarch Monitoring Blitz. 31 July to 9 August 2026. monarchblitz.org”
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The Arthur C. Clarke Award @clarkeaward.bsky.social · 14/07/2026
📡 Signal Boost! Live on Kickstarter right now, the new TTRPG based on the Clarke Award winning novel CHILDREN OF TIME by Adrian Tchaikovsky / @aptshadow.bsky.social Warning: may contain innovative gameplay, deep time world-building and (very definitely) spiders! 🕷️
kickstarter.com
Children of Time: The Roleplaying Game
Create millennia-spanning sci-fi epics in this groundbreaking roleplaying game based on the award winning Children of Time novels.
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s. e. smith @sesmith.lol · 13/07/2026
The fact that J.K. Rowling successfully bullied Amnesty International into taking down a report that accurately called out her attack on trans people, especially trans women, is so repulsive and such a display of the power of her money, and her choice to put her vast fortune behind persecution.
thepinknews.com
Amnesty removes report that called JK Rowling's centre 'anti-rights'
Amnesty International UK has removed a report which labelled JK Rowling's sexual abuse crisis centre Beira's Place as "anti-rights".
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Alex Wild @alexwild.bsky.social · 14/07/2026
No. We don't want the facists to be better trained. We want them gone. Trained fascists are still a cancer on society.
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Marisa Kabas @marisakabas.bsky.social · 14/07/2026
Lorenzo Salgado Araujo and Joan Sebastian Guerrero weren't murdered because of car pursuits. They were murdered because the men driving those cars felt comfortable recklessly killing. None of this ends until we shut down ICE completely.
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Alejandra Caraballo @esqueer.net · 13/07/2026
This is huge! The Trump administration is abandoning its plan to withhold Medicaid funding from hospitals that provide gender affirming care to trans youth under 19. www.npr.org/2026/07/13/n...
npr.org
Trump's HHS abandons threat to withhold Medicare and Medicaid funding over trans care
NPR has learned that the Department of Health and Human Services will not be finalizing its most aggressive attempt to end gender-affirming care for youth nationally.
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Anna Gifty @itsafronomics.blacksky.app · 12/07/2026
Caregiving is a massive economic opportunity or a massive economic crisis in waiting because nearly the entire care infrastructure rests on the unpaid labor of women, especially.
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