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6:35 - They look creepy. Not silly.

Big cats take blurry photos like sasquatch 😂😂

You can't use Allosaurus, great white shark, and smilodon to argue that Terror Birds hunted large prey when those 3 have teeth while terror birds didn't.

It's looks like human walk cycle.

Great video

Nature really seems to like this body plan, or something close to it. From the synapsids and Scutosaurs, through therizinosaurs to these guys, almost every group of terrestrial animal had something like this.

Very informative as always. I'm very excited about the cephalopods.

Thanks for this video 🇧🇷

Hind legs

Always cool Learning About All Kinds Of critters ❤❤❤

Now watch, turtles are actually related to Ankylosaurus

I love this channel

Skeptics, so all of these people are lying or mistaken about what they saw? All of them? No way. And the people that say they can't exist because it's impossible. Bullshit. "Impossible" things happen all the time.

The forbidden murder sausage.

Nice this is a good video

I have footage of Aust beach if you want it.

Thank you. Fascinating as always. "Unintelligent design". Love it. 😄

Good vid, odd background music choices. Would have been fine without it.

Evolution is fairytale for adults!!! Planet earth is 6000 years old bo million of years!!! Species dont change to a different type of animal!!!

New drinking game just dropped -- take a shot every time Doc says "civet-like." 😛🤣

What quantity (and quality) of evidence is demonstrated proving head-first births?

For anyone who wants a longer video containing info on the larger icthyosaurs of the Triassic and Jurassic i recommend checking out Ben G Thomas. They and Dr. P provide some of the best paleo videos out there, with the good doctor here showing us stuff we never thought to imagine and the team at Ben G Thomas providing longer form deep dives.

Early Ichthyosaurus looks kinda like weird Mossauria.

Like there were normal early ichthyosaurs....

Great video again :) two comments: 1) On Chaohusaurus birth: did you read Miedema et al 2023 on the topic? They dispell the hypothesis that drowning is an important factor in birthing orientation, as many animals happily give birth head-first in the water and have been doing so for millions of years. They also show that head first births persist well into the fully marine history of ichthyosaurs. This makes the Chaohusaurus specimen not direct evidence for terrestrial birth in the ancestors of ichthyosaurs (although it is certainly possible that this is still the case). 2) I don't think anyone has formerly described a cranium yet for Parahupehsuchus. To my knowledge the headless holotype is still the lone referred specimen. Maybe I missed something.. what is your source for the cranial discussion of Parahupehsuchus?

Do eulipotyphlans next after the next video!

When will you make cryptid videos again?

Excellent content - There was 10x more info in here about early Ichthyosaurs than I have ever come across before. Usually I have to sift through loads of content to learn one new fact. In this video the new facts were coming faster than I could file them away - will have to watch again now :-)

I mean, I believe Cryptid stuff, but for some reason I believe in the British and Australian big cats

Reptiles basically dominated the world

I’m actually on the ichthyosaur chapter on the Dr. Darren Naish book an ichthyosaurs are very adaptable, marine reptiles

I really wish that some of then survived until today

In regards to pregnancy other aquatic tetrapods (including fully marine early whales) also give birth face first. Shifting to tail first is probably more due to hydrodynamics rather than drowning

I want a pet Cartorhynchus!

I just wanted to say how much I love these videos. If I could figure out how (I'm not tech savvy) I wish I could get them all on DVD! Thank you for your research, and your hard work!

Which prehistoric creatures were cute is a vital and neglected area of study. Cartorhynchus reminds me of catsharks.

its funny how many parallels there ar ebetween ichthyosaur ans mosasaur evolution

🤪👍

Hey Dr.Polaris, right after the evolution and the history of the Soft-Cephalopods, why don't you think about making a suggestion and creating a TH-cam Videos that's all about the evolution of and the history of the Prehistoric Marine Reptiles called the Plesiosauria, (Plesiosaurs, Pliosaurs, And Polycotylus) in the next couple of weeks to think about that one coming up next?!⭐️⭐️⭐️⭐️⭐️👍👍👍👍👍

Thank you very much - really enjoyed this and are already looking foreward to your next one about cephalopods!

To think the Hupehsuchus and it's kin could have become large whale like filterfeeding forms had they not gone extinct Also you covering invertebrates next is really neat. My brother has done alot of research and art of cephalopods

I wonder what would have happened if every single continent today stayed separate and they never connected.

Yesssss cephalopodsssssss !!!!!!

Or maybe bizarre Phanerozoic lifeforms

The fact that these reptiles were able to evolve into a range of size so quickly is honestly really crazy.

What is the flute music that seems like modern classical music or the soundtrack to some polyneisian setting to an old movie.

It's quite ironic that these videos come out on Sundays.

Great video! So, when do we get a video on Alter Earth Pliocene wildlife?

Love this Dr. P. I love deep dives into obscure lineages. Perhaps you can do Maniraptorans that lead up to birds.

the early Triassic and Paleocene are some of my favorite periods in earth history due to the many different creatures evolving to fill in the niches after so many others went extinct.