Table of Contents:
Introduction (0:00)
The First Synapsids In The Paleozoic (0:38)
Mammal Ancestors In The Mesozoic And The First True Mammals(3:47)
Monotremes (9:29)
Eutheria (10:51)
Marsupials (11:45)
Placentals (17:08)
Placentals: Atlantogenata (17:57)
Placentals: Euarchontoglires (20:38)
Placentals: Laurasiatheria (28:15)
Mammals are a fascinating group of animals that can be found everywhere on Earth, from the land to the seas to the skies. From small rodents like mice and rats to behemoths like elephants and whales, mammals are found in all kinds of shapes and sizes, occupying numerous environmental niches. This rich grouping of animals comprises a vast network of different lineages and in this video I want to explain the origins and the spread of mammals. As such this video will be broken up into two parts: in the first I will cover the evolution of mammals, and in the second I’ll be going over the major extant orders and explaining every living mammalian family.
Image Credits:
WillemSVDMerwe
Julio Lacerda
Sources:
Handbook of the Mammals of the World
Steve Brusatte
Twitter: https://twitter.com/AnimalOrigins
source
In which part of evolution cows started to give birth to humans? Because people are still breastfeeding from them… Is so weird
I wish you could talk about Reptiles and birds
Wow! Loved your video, I hope you keep at it
👏🙂
Very interesting
4:08 you should've quoted verbatim what the documentary said and played the clip where he said that
Good background song choices 🙂 glad to see someone using some of Klonoa soundtrack haha
Mongeese*
38:00 is that klonoa soundtrack in the backround
Every one of them are cute in some way! The Earth is so precious!
awesome video!
Love that first chart
RIP to the tasmanian tigers 🙁
Over 1,600,000,000 nanometers
Great content 👍🏾
7:50 don’t know why but that made me wheeze a bit. The video is quite fascinating but that caught me off guard
10 33
Did you really think I wouldn't notice you using music from K-On at the beginning?
I love your videos
Voice and delivery sucks. Unwatchable
I give you a standing ovation for this video. I loved every second. Very good job!

Sorry but… You really omitted to include the humans with the apes? Its a joke?
very interesting after band contest on the bus (i got a superior!!! my first ever as a freshmen)
I always wanted to learn about mammals evolution. Thanks for the video.😊
Your comedy is always out of left field haha 😂 you remind me of one of my professors who liked to sprinkle humor under his presentations like that
9:21 gotta be quick
Read The Book of Genesis if you want to know the truth.
Sometimes this world doesn't even make sense to what it means
Wow! What a monumental task you took on! Thank you so much for doing this.
Historically, classification was accomplished by comparing physical characteristics. Has DNA been used to revise any of these classifications?
Are drag queens classified as “mammalian” or “faux mammalian”?
WOW… Everything is a tung twister.
Nothing evolved GOD created the Universe and everything in it.
Prehistoric animals look like aliens 😅 the amount of diversity our Earth has seen thru all of its history is mind blowing
You could have just searched TMBG Mammals and learned all this in under 4 minutes
I love this video so much
Good insightful content but the worst theory ever
I think this video actually does something to point out how weird evolution is and how you cannot use modern classification to explain history. it is a balance of "this animal is slow and stupid because it just lacks the ability," and "this animal is really smart because it never could have believed that this was ever a problem."
More garbage from evolutionists. It appears they hate biology, chemistry, logic, and statistics and replace these with fairytales designed to dupe the willfully gullible.
You left out us from our order. We are animals like all the rest.
It's established that number of chromosomes can't change. This is a montage of a history more imaginary than Tolkien's.
I am impressed by your reading of the shear number of names of this group of animals.
RESPECT to families whose ancestors set up those first trail cams, which gave us great footage of the early dinosaurs and mutations of Rat !!! And kudos for keeping the video safe as digital I know wasn't invented until the 1990's. I'll assume all Dino footage was caught on VHS. 🌎👑