Chordate Evolution (1/2)

This is the first in a 2 part video on the evolution of chordates, focusing on the major adaptations shared by chordate groups, the phylogenetic relationships between these groups, and the connection between the two concepts.

I have intentionally left turtles out, as there is some debate as to their relationship to the other reptiles.

All images and video footage in this video are used under "fair use" for non-profit educational purposes.

Feel free to mirror this or any of my other videos. I only ask that you provide a link to the original and/or my profile page.

Category:

Education

Tags:

• evolution
• chordates
• phylogeny
• phylogenetics
• tree
• of
• life
• nested
• hierarchy
• creationism
• intelligent
• design
• ID
• teeth
• jaws
• heart
• vertebrates
• mammals
• reptiles
• fish
• amphibians

[GJHess890812]

Where is Chordate Evolution (2/2)?

[EvoBiologist]

@GJHess890812 I know, I know... My son was born and I never finished part 2. Some day...

[therachelschrader]

Thank you for posting this video! It really helped me and my study buddies put together all the concepts we're learning in Zoology. You've got sexy brains!

[EvoBiologist]

@therachelschrader Glad I could help. Maybe one of these days I'll actually get around to finishing part 2.

[NeoPsiTom]

@EvoBiologist Ah, that explains it. I check your channel every now & then to see if you have uploaded the 2nd part.

[seraph595]

@TCupUK Exposure to neutrinos is the theorized reason behind the accelerated rates. Good job on debating the athiest scum. Your holding your own.

[GJHess890812]

@EvoBiologist Congratulations on having a child!

[gregrutz]

@TCupUK Polonium halos (as in Po218) are actually formed by radon (Rn222) which is a gas formed from by decomposition of radioactive uranium present in granite. That this is true is demonstrated by the fact that Rn222 and Po218 halos are virtually identical and the fact that radiohalos are ONLY observed in granites which also contain large amounts of radioactive uranium. The decomposition of Rn222 to give Po218 is also responsible for lung cancers in environments with high radon incidence

[gregrutz]

@TCupUK Geologists knew the earth was million of years old before nuclear chemists told them it was 4,545 million years old, + or - 2 million years.