Reposted by Daniela RößlerJolyon Troscianko @jtroscianko.bsky.social · 30/09/2026🦋 Butterfly wing patterns create motion illusions that protect them from predators! Our new study (8 years in the making) is out in Nature today doi.org/10.1038/s415... @grahancock.bsky.social @esbriolat.bsky.social @scienceanna.bsky.social @lauraakelley.bsky.social @uniexecec.bsky.social 12257128
Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026Next time you see a garden spider hanging a bit droopy in its web, it might be asleep. #staycurious @asab.org @unibonn.bsky.social @mpi-animalbehav.bsky.social Read "Increased response latency in Araneus diadematus (Araneidae) during putative sleep in the wild" here: tinyurl.com/uznvv58y 🧵5/5tinyurl.comIncreased response latency in Araneus diadematus (Araneidae) during putative sleep in the wildSleep is a seemingly universal behaviour across the animal kingdom, yet for the majority of species, experimental evidence of sleep is still lacking. … 1122
Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026Why this matters: A. diadematus is a common, accessible, #nonmodel species. If a backyard orb‑weaver shows clear sleep‑like arousal patterns in the wild, we suddenly have a powerful system for studying how sleep evolved, outside the lab, in real ecological contexts. 🧵4/5 182
Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026A subset didn’t respond at all until gently touched awake. Thus, we found a very strong behavioural marker of sleep: increased arousal threshold. 🧵3/5 151
Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026We tested wild Araneus diadematus with an auditory stimulus: a 400 Hz sound triggering a stereotyped "leg raising" reaction. Active spiders reacted fast irrespective of night or day. Immobile spiders during the day? Also fast. Immobile spiders at night? Much slower! 🧵2/5 271
Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026🚨New paper🚨 Garden #spiders are everywhere right now—big, beautiful ladies, still in the hub of their 🕸️ But they are not just waiting, at night they also 💤! We found behavioral signatures of sleep in the wild. Out in #AnimalBehaviour w/ @mherberstein.bsky.social tinyurl.com/uznvv58y 🧵1/5 13718
Reposted by Daniela RößlerClaudia Wascher @wascherclaudia.bsky.social · 23/09/2026I'm so excited to finally see the special issue "Addressing Biases in Animal Behaviour" fully published: www.sciencedirect.com/special-issu.... Huge thanks to my brilliant co-editors @viveknityananda.bsky.social & @nicolakoyama.bsky.social. Special issue grew from @asab.org's 2024 Winter Meeting 🧵sciencedirect.com 15739
Reposted by Daniela RößlerMaartje van Denderen @maartjevandenderen.bsky.social · 02/09/2026Read my latest newsletter here! Where I talk a bit about my thesis projects, and what the future holds for me now, after graduation. maartjevandenderen.substack.com/p/long-overd...maartjevandenderen.substack.comLong OverdueAn update on my thesis and life after graduation 032
Reposted by Daniela RößlerLauren Sumner-Rooney @laurensr.bsky.social · 29/07/2026📢 JOB ALERT! 📢 I am recruiting a 30-month postdoc to work on modelling the vision of trilobites @hfspo.bsky.social ! If you like 3D data, fossils, and functional morphology, this is the one for you! 📆Deadline 27. Aug Pls contact me with any Qs and share widely! www.bristol.ac.uk/jobs/find/de...bristol.ac.ukDetails | Working at Bristol | University of Bristol 28893
Daniela Rößler @roesslerdaniela.bsky.social · 23/07/2026💤 Tired from #ISBE2026???? No!! Just a bunch of people excited about #animal #sleep ;) Great to connect all the sleep people - and hope to see this group grow at future ISBEs 💤 Hope to see you all tomorrow morning! @nityamohanty.bsky.social @nadjageiger.bsky.social @justmathieu.bsky.social 0254
Reposted by Daniela RößlerBob Wong @bbmwong.bsky.social · 20/07/2026So excited for day 1! #ISBE2026 🥰 0262
Reposted by Daniela RößlerVivek Nityananda @viveknityananda.bsky.social · 13/07/2026Great advice for an academic jobs as well! Rejection and criticism is constant but it helps to remind yourself "That’s what I do, that’s not what I am". 0136
Reposted by Daniela RößlerMikkel Roald-Arbøl @roald-arboel.com · 07/07/2026We do an awful lot of looooong video recordings in our lab and have long wanted an easy way to clip, compress and combine videos for our workflows. So here's #croppy! 🦀 I hope others will find it useful too - I'd love to hear if you do! And would appreciate if you give it a star on Github! 🌟 0258
Reposted by Daniela RößlerbioRxivpreprint @biorxivpreprint.bsky.social · 30/05/2026ctSpyderFields: A Python package for visual field reconstruction in spiders www.biorxiv.org/content/10.64898/20… 085
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026Happy Croppy’ing! Use, share and give the project a star on Github! 🌟🦀 000
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026Should you have any questions, you can hopefully find answers in our documentation at roald-arboel.com/croppy/. And if you find bugs or have suggestions for new features, please open an issue on Github at github.com/roaldarbol/c....roald-arboel.comCroppy - CroppyCommon video chores — cropping, trimming, joining, and compressing — in one window. 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026Installing is also easy! Simply install Pixi (pixi.prefix.dev/latest/insta...) and then run: `pixi global install croppy`pixi.prefix.devInstallation - PixiPixi Documentation — Next-gen package manager for reproducible development setups 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026“Jobs” is where you manage all the jobs you’ve created. You can start or stop jobs and monitor their progress. If your computer has multiple GPU/CPU cores, you can even choose to run jobs in parallel for a nice speed-up. 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026“Combine” allows you to concatenate multiple videos while adjusting the encoding settings in one go. Optimal if - like us - your cameras start new recordings every hour. 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026“Compress” allows you to change the encoding of a file, which often means compressing to save space. But it can e.g. also be used to change your “.mov” file to “.mp4” or lower your frame rate. 110
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026“Clip” allows you to clip in both space and time! You can make cropped regions and/or choose time intervals, and get all the combinations. 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026When you’re happy with your settings, simply add them to the queue, click “Start” and off you go! 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026Don’t want to use expensive video editing software or use ffmpeg in the terminal? Croppy is for YOU! For all actions, you choose where the new files go, what they’ll be called, and how they’re encoded. If you have a GPU, then Croppy detects it automatically to allow you to speed things up-no fuzz. 100
Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026Our postdoc @roald-arboel.com made a thing! #Croppy is #free and awesome for fast and effective #video #editing and it has a #GUI! Need to crop a part of a video? Need to trim a video? Need to combine videos? Need to compress a video? roald-arboel.com/croppy/ 3286
Reposted by Daniela RößlerAtal Pande @atal-pande.bsky.social · 03/07/2026Really excited to share that my first PhD chapter is now out in @currentbiology.bsky.social! 🕷️👀 We show that visually hunting spiders have repeatedly evolved forward-facing eyes, highlighting the remarkable evolutionary flexibility of their modular visual system. doi.org/10.1016/j.cu...cell.comHunting ecology predicts eye arrangements in the modular visual system of spidersPande et al. show that visually hunting spiders have convergently evolved forward-facing eyes. The positions and orientations of the eyes show the greatest morphological disparity and fastest evolutio... 59233
Daniela Rößler @roesslerdaniela.bsky.social · 02/07/2026Amazing!! Congrats to all! Especially @atal-pande.bsky.social ! 🥳🥳🥳 020
Reposted by Daniela RößlerLauren Sumner-Rooney @laurensr.bsky.social · 02/07/2026Beyond proud of @atal-pande.bsky.social, whose first PhD chapter is out now in @currentbiology.bsky.social! Atal shows that spiders that use their vision to hunt have convergently evolved similar eye arrangements, which imply lots of resampling of frontal space www.sciencedirect.com/science/arti...sciencedirect.comHunting ecology predicts eye arrangements in the modular visual system of spidersVision is one of the most important senses used by animals and contributes to fundamental behaviors, including foraging, navigation, and mate detectio… 45320
Reposted by Daniela RößlerEvolutionary Biomechanics lab Greifswald @evoimec.bsky.social · 02/07/2026Spider running performance varies enormously. We joined forces with David Labonte's Evolutionary Biomechanics lab in London for the broadest spider speed assay so far: 258 spp / 139 families Preprint: doi.org/10.64898/202... Press coverage by the New Scientist: www.newscientist.com/article/2532...newscientist.comThe world's fastest spider tops 3.5 metres per secondThe most comprehensive database ever compiled of how fast arachnids can run has shown how leg anatomy and evolutionary history influence spiders’ running speed 094
Daniela Rößler @roesslerdaniela.bsky.social · 25/06/2026Please spread this talented and wonderful human’s name and work. Maartje @maartjevandenderen.bsky.social just finished her Scientific Illustration Master and is leaping into freelancing next. Got 💰 and #illustration needs? Look no further!! www.maartjevandenderen.nlmaartjevandenderen.nlMaartje van DenderenMaartje van Denderen is a Scientific Illustrator, interested in insects, mushrooms, and plants. 0124
Daniela Rößler @roesslerdaniela.bsky.social · 25/06/2026Oh - and: f%#! AI for scientific illustrations!!! 060
Daniela Rößler @roesslerdaniela.bsky.social · 25/06/2026Massive congrats to @maartjevandenderen.bsky.social for defending her fantastic thesis! 🥳 Maartje did her scientific illustration thesis with us on #spider #sleep @sleeblab.bsky.social Super cool experience & a pleasure to advise her. 👀 to hire an #illustrator >>> 💻 📞 Maartje!!! Colored pencil 🤯: 44510
Reposted by Daniela RößlerEvolutionary Biomechanics lab Greifswald @evoimec.bsky.social · 24/06/2026The #Australian ballista #spider (Propostira sp.) uses its silk's elastic energy storage capacity to build the most powerful snare and selective in the #animal kingdom. Read about our discovery here: doi.org/10.1016/j.cu... Video by Ajay Narendra. Recorded with 3,000 fps, playback 100x slowed down! 1139
Reposted by Daniela RößlerSLEEB Lab Bonn @sleeblab.bsky.social · 23/06/2026Off to the caves! We’re finally back in the field: filming sleepy cave spiders! 🕷️🕸️ Let’s see what we find! #fieldwork #animalsleep #caves @roald-arboel.com @nadjageiger.bsky.social @roesslerdaniela.bsky.social @unibonn.bsky.social 0133
Reposted by Daniela RößlerNadja Geiger @nadjageiger.bsky.social · 01/06/2026New paper alert!🕷️✨ Tiny spider. Shiny abdomen. Suspiciously wiggly bum. In our new study, we asked what abdomen bobbing in this jumping spider is really all about: Cute? Yes. Meaningful? Let’s find out...! [1/8] @unibonn.bsky.social link.springer.com/article/10.1007/s00265-026-03745-1 14013
Daniela Rößler @roesslerdaniela.bsky.social · 01/06/2026🧵 Summary thread on our latest #spider #research. No time to read the #study ? But dying to know why spiders may twerk? This is for you: 🧵 040
Daniela Rößler @roesslerdaniela.bsky.social · 31/05/2026Super creeps!! I love them!!!! Thanks for sharing this one 🥰 000
Daniela Rößler @roesslerdaniela.bsky.social · 31/05/2026Thank YOU for posting all the good jumpies out there!! Love seeing others doing the wiggles :)) 110