The Mammals that Lived Alongside the Dinosaurs 

I love your channel, however I do have one criticism; your source for the flying icthyoconodons is um... controversial to say the least. The hypothesis and “papers” justifying the existence of ancient flying non-bat mammals were not made by a scientist and not peer reviewed, the author merely another David Peters in regards to behavior and production of crackpot ideas based on little evidence. Would suggest adding a disclaimer in the video description to let viewers know that the evidence for non-bat aerial mammals isn’t all that substantial as well as unlikely.

I had never heard about mammals having night time adaptations as a group but it makes a lot of sense.

Normally people will just tell you "nah the dinosaurs took all the roles and niches, leaving mammals to all turn into rats and crap" but they were so much more diverse than i could ever imagine.

Thanks for the video. One minor correction: most non primate mammals do see color; just not as well. Mammals lost 2 of the 4 primary colors their therapsid ancestors had. Old world primates gained the ability to see a third primary color. It's a bit more complicated with new world primates.

Oh man this is good stuff. I will throw you a dollar on patreon just so that I can brag about being your 4th patreon when this channel gets big.

I just want to point out how much skill it took for the artist to draw the thumbnail. The perspective from below the water required so much detail and precision. Great job!

Funny how the documentaries that talked about dinosaurs in the era they live in never touch the mammels. This was and enjoyable learning experience

My new, favourite "evolution" channel! Great vid on an often overlooked subject in paleontology. Thanks.

Its so sad that this video dodn't get as many views as your last two. You are an excellent source for all things prehistoric. I am so glad you are here on RU-vid

I knew mammals walked alongside dinosaurs but I didnt realize for how long. Its almost insane to separate the two anymore. Such a neat video.

I was walking my dog at night and we saw a possum. Imagine seeing an animal that was around when the dinosaurs were around at the end of the Cretaceous Period. I wonder if my dog and I have a new found respect for our mammal brother, and their tenacity, and their strong family values to protect young during the dinosaur period. So much drama, dedication, and struggle. Thanks.

As we find more and more fossils, it is fascinating how "bushy" the Mesozoic mammal family tree was. As with more recent fauna, gone are the simple one specie lines (such as the 19th-century horse series or the 1960s Rudolph Zallinger's "The Road to Homo Sapiens" come to mind) and the ever-decreasing number of ghost lineages than we had say mid-20th century.

'All the gliding mammals today are herbivorous' - Anomaluridae are at least occasionally inclined to snack on insects, and I've been told that at least one population (Mkushi, C. Zambia) are regular raiders of birds' nests (anecdotally, but fits their environment which is more dry woodland than rich fruiting forest)

I believe the mammals, who were generally much smaller, likely survived for the same reason some of the avian dinosaurs did: they didn't require as much in the way of food. I think what really killed off the non-avian dinosaurs and other big creatures was the dying of many plants. Some plants survived, but not nearly enough for big herbivores, whose survival was also necessary for big carnivores to have enough to eat. Being smaller would have been a huge advantage at that point in time.

Thanks for making a video on prehistoric mammals

Dinsaur : Predating the mammals for millions of years Random space rock : Hit earth Mammal : S T O N K S

So my DNA has had been a nocturnal for 160million year and diurnal for 66million year? No wonder I always feel sleepy at day time and energetic at night time.

This channel is a gem hidden in the rough

Correction: Repenomamus was found with a juvenile psittacosaurus in it's stomach, not a therapod.

Found this channel about 2 weeks ago via reddit and literally watched every single video. Great content! Can anybody recommend any other channels that makes videos about evolution such as this one?

i did not expect that about opossums! what a curveball!

I absolutely love your videos, I found you through reddit a month or something ago, and I'm so glad I did!

The amount of work that you've put into these videos boggles my mind. Amazing. A minor complaint I would make would be the way you acknowledge the creators of the various artwork shown. It's a bit confusing. The text changes in size depending on how much of the screen the artwork covers so that sometimes the artists name looks like an acknowledgement but other times it looks like it's part of the narration. I'd suggest changing the font size so it appears a consistent size, give it a unique color to differentiate it from the editorial text and give it a prefix like 'Artwork by'. Thanks.

I literally just subscribed and you immediately post a new video... that's excellent timing. Loving the videos so far, keep up the good work.

Your channel is awesome, you deserve much more subscribers ! Keep up the good work, loving it

Found your channel through Reddit (I think) a week ago. Loving your content, keep it up!

I’m glad I found this channel, very interesting topics!

Very informative and interesting to watch. I also love the selection of pictures as they are beautiful!

i am glad i found this channel, i like it very much. You have clear enunciation and a very good script!

Thank you RU-vid recommended for making me aware of this channel! Thoroughly hooked!!! Currently an postgraduate doing masters in zoology in NZ and this video is basically a recap of all the stuff I learnt last year!

Moth Light thank you so much, just like the mesozoic mammals this awesome and fascinating video filled a niche that needed to be filled. Loved it !

This video was very informative. There’s very little material in the media about Mesozoic mammals. Thanks for this video. Your channel is amazing. Perhaps a thylacoleo video sometime down the line?

Hope RU-vid algorithm works real quick. Nice channel.

Wonderful Channel. So professionally made.

These videos are so calming and nice, I use them to fall asleep.

Great choice for background music my man. Really vibes with me!

Man, I just want to say, thanks for the videos. I've really enjoyed them.

Great subject matter super cool artwork so many different species in so many diverse habitats and extra points for excellent background music

Fantastic content and presentation of research.

The artwork and animations are outstanding! Archaeologists are messengers of the past.

Just found this channel, it’s really good!

Now i see why we have an ego, for the longest time we were underdogs just bloody rats!, we were prey for the longest time.

I just subscribed yesterday, but we have to get you more subs. 7.3k for content of this quality is an injustice that cannot be permitted to stand!

I really love your videos. Thank you for posting. They are informative and very nicely done,

I just saw your videos adn chanel for the first time..and they are good...keep up the good work...I will watch all of them :)

Happy to find your channel. You've earned yourself a subscriber.

what music do you use in the backgrounds for these videos? i really enjoy it! would def use for studying

This video is truly amazing, thank you so much!!!

Wow thank you for the cool videos, i just saw the patreon link ! I would love if you can make a video about how scientists gather and interpret the fossils and how many fossils we have, how speculative are fossils for each era, what methods are used and stuff! Thank you once again for the videos they are digestable for a non scientist person like me :)

Dinosaurs are cool. But I find that learning more of mammals and their ancient struggle to become....me is closer to my heart.

This channel has literally changed my worldview

Just found this channel, great content

I love the music in this video. It would fit so well in a documentary on the evolution of life. :)

It’s the music in the background for me! So cute

this channel is cool..very fascinating, thx!!!!

great channel! it remebers me the pbs eon channel haha.. i hope your channel grow a lot

Great video brother.

The music playing in the background..... It's tranquil sensation is well placed. Did you mixed it your self or are using someone elses music? Also... I have subscribed.

Really liked your video! I wanted to comment just saying how much I love nature and animal doccumentaries, but after reading all the comments I realized I legit know nothing in comparison lol

It'd be interesting to know the way those extinct lineages of mammaliaforms reproduced. One of them had to be the transition between egg laying and retaining the embryo internally. That means there likely was a ovoviviparous lineage.

Great animation!!!!

Because of this channel, I would have never known there were used to be 5 MAMMALIAFORMES! This is SOO COOL!😱 and interesting🤓💓

I wonder why the algorithm doesn't push this channel more :( it deserves more attention.

A massive thank you!

It's worth note that the proto-mammal ancestors of mammals were often MUCH larger than dogs, some as large as medium-sized dinosaurs. Before the extinction event that started the Triassic, those stem mammals were THE dominant life form. And they had many of the traits of mammals. So many, that we're not exactly certain what proportion of traits existed back then. They've been thermoregulating since at least dimetrodon...which has another mammalian trait described in its very name: Two-sized teeth. Tooth specialization is a mammalian trait. The synapsids who ruled before the dinosaurs may have been so mammal-like that if we saw one, we'd think it WAS a mammal. We don't know whether therocephalians like glanosuchus had hair, but given the signs that they were endotherms they probably did, and if so then they'd just about fit into a modern zoo as a mammal, without visual distinction.

Brilliant video!

Very intetesting. Thanks!

These videos are super helpful for my worldbuilding project

Great content, earned a suscriber :)

I think a video about how primates gain more colored vision would be great

This channel is my RU-vid gem

Good job on the video! I found you on Reddit

Its not everyday you learn something new like this

very very informative thankyou

Such an interesting channel

Mindblowing one of those depictions of small rat-like creatures could've been our (humanity's) direct ancestor. As in your great-great-great and so on grandparent.

I didn't realize that Possums have been around for that long in this form!

Very informative.

your music is lovely but wonderfully hypnotic.

Amazing is an understatement.

I love your videos very lovely

Karim carrying this channel on his back since 2019.

Good show!

1:22 "Unable to compete" LMAO

I thought just Ben g Thomas would make such nice videos... But your videos are excellent too... I enjoy them very very much... Keep up the good work!!

Well, at 3:19, it really should have been pronounced "volaticotherium", not "volacitotherium"...The video is overall really a rare jewel...since our mesozoic mammalian ancestors and their fossil kin really deserve some light shed on them.

Good stuff

Good video.

What is the music playing in the background? Very nice!

Repenomamus are same as the size of Badgers and ate small dinos, wow no wonder wolverines and Badgers are so ferocious and doesn't care about larger predators than them at all , fearlessness is in their dna 😂

Out of curiosity, would anyone know the music used in this video? I've been interested ever since I found the channel some weeks ago, but haven't been able to locate it.

You are the reason I'm going to pass biology

Wow so cool!!

Its kinda cool how the group of animals the take the less dominant roles gain interesting survival skills that let them beat out the more succefull guys over time

I really like and appreciate this content. Keep up the good work man. You're doing the Lord's work, and I honestly enjoy your content. It soothes me to watch your vids.

Nice to know that there was a wider diversity of mammals then just fluff balls or shrew like.

A vídeo on the adaptations that allowed birds and mammals to survive the KT event would be fantastic.

Could you do a video about bat evolution? I'm obsessed with your channel.

I would like to support you on patreon but I'm 15 and unemployed, but one day! Keep up the good work!

Love the ginkgo renders.