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Great Dying Survivor @cannotthinkofone99.bsky.social · 02/10/2026

#FossilFriday One of the biggest land predators (8+ tons) of all time alongside its relatives and Tyrannosaurus, the animal we all know as Carcharodontosaurus is more likely a new taxon, as the original description of Carcharodontosaurus is neither from Kem Kem nor diagnostic.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 18/09/2026

#FossilFriday Complete skeleton of Hemicyon sansaniensis, a fully carnivorous and cursorial bear from the Middle Miocene.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 07/09/2026

Keep this in mind whenever you see someone bring up the idea Tyrannosaurus had superior eyesight to other megatheropods.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 04/09/2026

#FossilFriday Arguably the most hyper-specialized of all sabretoothed predators, Barbourofelis fricki was the last and largest of the nimravids and represents their comeback as a successful macropredator lineage during the Miocene, coexisting with actual sabretoothed cats as well as Epicyon.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 29/08/2026

Carnivores of the American West assemble (I wanted to add more but the software wouldnt let me)

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Great Dying Survivor @cannotthinkofone99.bsky.social · 29/08/2026

Two different sabretoothed synapsid apex predators, 264 million years apart, of comparable mass but somewhat different dimensions:

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Great Dying Survivor @cannotthinkofone99.bsky.social · 29/08/2026

Also my rankings for each individual episode (or segment for WWM and Sea Monmsters)

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Great Dying Survivor @cannotthinkofone99.bsky.social · 29/08/2026

Personal tier list of every depiction of every species in the Trilogy of Life and spin-offs, based on how accurate it was for the time, how well it aged since and the narrative role it played.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 28/08/2026

#FossilFriday The only known North American terror bird, Titanis first evolved around 5MYA from ancestors that colonized the continent from South America; later, around 3MYA, it became larger (300+kg) and became the largest terrestrial carnivore of southern North America until its own extinction.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 26/08/2026

Diprotodontia is a spectrum (note these two were actually contemporary)

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Great Dying Survivor @cannotthinkofone99.bsky.social · 24/08/2026

and another that takes advantage of that ruggedness as an additional weapon to kill prey with. (2/2)

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Great Dying Survivor @cannotthinkofone99.bsky.social · 24/08/2026

Had a shower thought today about how Eurasia has an alpine macropredator that must overcome the inherent dangers of living in such a rugged habitat to hunt successfully.....(1/2)

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Great Dying Survivor @cannotthinkofone99.bsky.social · 23/08/2026

TW for someone’s pet dog being killed For such an iconic predator, there are very, very few videos of green anacondas actually striking prey: this clip from Brazil is the best one out there. And no, I have no idea why this guy took his dogs into water either.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 21/08/2026

Python molurus in action, because archosaurs have not been the only megafaunal macropredatory sauropsids of the Cenozoic (even if giant constrictors took a very different approach from basically every other top-order carnivore).

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Great Dying Survivor @cannotthinkofone99.bsky.social · 21/08/2026

Do note that the fossilized mount of Titanis is rather inaccurate (compare it to the much more accurate reconstruction below); it is known from only fragmentary remains, and the mount was based on ostriches or smaller terror brids rather than using other large terror birds as reference.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 21/08/2026

#FossilFriday Plithocyon (possibly Hemicyon) ursinus was a hemicyonine bear from Middle Miocene North America comparable in size to the average black bear but, unlike any extant bear but like other hemicyonines, was a digitigrade cursorial carnivore adapted to chase down large animals at speed.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 18/08/2026

Reminder that there was a raptor sabretoothed cat with heyna-like cursorial adaptations (!!) around 8 million years ago.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 14/08/2026

#FossilFriday The 150~200kg Phorusrhacos was the first-described terror bird, and is the type genus for Phorusrhacidae as a whole. Despite often being depicted with a short, tall skull, in reality it (and most larger phorusrhacids) had longer skulls.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 13/08/2026

A size comparison of various phorusrhacids: credit for the skeletals belongs to @randompaleonerd.bsky.social.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 07/08/2026

#FossilFriday Hyainailouros sulzeri was a large (400+kg) hyainailourid hyaenodont from the Early and Middle Miocene, evolving in Africa but also colonizing Eurasia. It preyed on rhinos and proboscideans and coexisted with the equally massive Amphicyon giganteus throughout most of its range.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 07/08/2026

Here are the most complete specimens of Postosuchus (both kirkpatricki and allisonae) we have (credit to @literallymiguel.bsky.social) for reference

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Great Dying Survivor @cannotthinkofone99.bsky.social · 07/08/2026

Exhibit A of just how detrimental New Blood has been to public understanding of life in the Triassic:

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Great Dying Survivor @cannotthinkofone99.bsky.social · 31/07/2026

#FossilFriday Aside from being the biggest and most famous gorgonopsian, Inostrancevia is among the best-preserved, with two specimens (including the holotype) giving good insight into the anatomy of large gorgonopsians.

The holotype of Inostrancevia, missing only the feet, ribs and tip of the tail.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 31/07/2026

Turns out a 55kg predator is NOT beating a 300kg predator.

A Titanis kills a S. gracilis with a neck bite

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Great Dying Survivor @cannotthinkofone99.bsky.social · 09/07/2026

#FossilFriday First mentioned in an abstract during the 2015 SVP meeting, this giant cynognathid from the Omingonde Formation was likely a close relative of the coeval Cynognathus, but was much larger assuming it had similar proportions.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 04/07/2026

#FossilFriday Alongside spinosaurs and pliosaurs (and ichthyosaurs), the Bonarelli Event - as shown on #SurvivingEarth - also wiped out numerous dinosaur lineages on land, the biggest victims being the then-dominant carcharodontosaurs. Mapusaurus was among the last and largest of this group.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 26/06/2026

#FossilFriday First appearing in the fossil record a mere 700K years after Chicxulub, the wolf-sized triisodontid mesonychian Eoconodon is the oldest known mammalian apex predator.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 24/06/2026

To my fellow South Koreans who demonize wildlife as evil monsters to be exterminated while protecting feral cats, read this. 야생동물을 악마화하며 혐오하고 생태계교란종인 길냥이를 보호하는 한국인들운 이걸 깨달아야 한다

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Great Dying Survivor @cannotthinkofone99.bsky.social · 20/06/2026

This is the FIRST ever footage of this endangered and rarely filmed shark hunting, and probably the first ever video of it in the wild. It's the most basal hammerhead species and the one with the biggest cephalofoil.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 19/06/2026

#FossilFriday Riojasuchus was a roughly 2m long ornithosuchid pseudosuchian with a distinct overbite. It lived 215MYA in the upper Los Colorados Formation along with various other pseudosuchians, despite #SurvivingEarth showing it as an environment where dinosaurs were the only large animals.

Source: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0148575

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Great Dying Survivor @cannotthinkofone99.bsky.social · 12/06/2026

At up to 8m long and weighing around 2 tons, Fasolasuchus tenax was the biggest non-theropod land predator to ever exist, and the top predator of the Late Triassic Los Colorados Formation. Skeletal credit to @literallymiguel.bsky.social.

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Great Dying Survivor @cannotthinkofone99.bsky.social · 11/06/2026

The tyrant king, the river god, and an entire lineage of titan slayers: collectively the biggest predatory animals capable of walking to have ever existed. 수각류 3대장