Comparative Anatomy: What Makes Us Animals - Crash Course Biology #21

Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.

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References:
Campbell Biology, 9th ed.
CliffsAP Biology, 3rd ed.
Thomas Henry Huxley: http://www.strangescience.net/huxley.htm
Tissues: http://web.jjay.cuny.edu/~acarpi/NSC/...
Divergence time estimates for the early history of animal phyla...
http://www.ncbi.nlm.nih.gov/pmc/artic...

Table of Contents:
1) Comparative Anatomy 0:00
2) Locomotion 1:19
3) Heterotophy 1:41
4) Convergent Evolution 2:40
5) Biolography 3:40
6) Tissues 6:00
a) Epithelial Tissue 6:11
b) Connective Tissue 6:33
c) Muscle Tissue 7:01
d) Nerve Tissue 7:14
7) Organs 7:32
8) Organ Systems 7:39

crashcourse, crash course, biology, comparative anatomy, evolution, ancestry, animal, kingdom, locomotion, organism, heterotroph, heterotrophy, convergent evolution, vertebrate, environment, thomas henry huxley, paleontology, agnostic, dinosaurs, charles darwin, prehistoric, fossil, tissue, epithelial tissue, connective tissue, nerve tissue, muscle tissue, organ

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  Education

[Nathan Ferguson]

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[Optimatum]

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I still don't understand what energy is, how energy from the sun creates complexity on earth, and how this all relates to entropy

[GoldenCompassPony]

anyone should be able to spell sponge, unless you're a sponge.

I want a shirt that says that

[Mitchell Tomkins]

I was an atheist and this comment changed my life.

[WillboFowlahr]

EVOLUTION IS A LIE!!! PROOF RIGHT HERE:

/watch?v=dQw4w9WgXcQ

[platipusoj]

nerdfighteria, please make a tshirt of a mongol taking a sponge bath, and having both say: we are the exception, please

[platipusoj]

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[Isabella Bowling]

Meet Holden Hansen.

[Elizabeth Gibson]

Where's the t-shirt of sponges saying "We're the exception"?

[EnderLord99]

Are sponges basically the Mongols of evolution?

[nicholas james]

yay Gold Star.