How We're All Related (Phylogeny): Crash Course Biology #17

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Published 2023-10-24

Crocodiles, and birds, and dinosaurs—oh my! While classifying organisms is nothing new, phylogeny— or, grouping organisms by their evolutionary relationships—is helping us see life in a whole new light. In this episode of Crash Course Biology, we’ll learn why this kingdom-phylum stuff is going out of style and why phylogenetic trees are in.

Chapters:
The Platypus & Phylogeny 0:00
Taxonomy 1:33
Systematics 2:44
Phylogeny & Genetics 4:32
Dr. Motoo Kimura 5:31
Phylogenetic Trees 6:56
The Complexities of Evolution 10:49
Review and Credits 12:43

This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit BioInteractive.org/CrashCourse for more information.

Check out our Biology playlist here: • Biology

Watch this series in Spanish on our Crash Course en Español channel here: • Crash Course Biología

Sources: docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYb…

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All Comments (21)

@magentaLPStarz 5 months ago

9:51 cute turning red reference!!
@baden4462 3 months ago

Biology teacher in the US here. Keep up the great work! These are very interesting and I’m even learning new stuff as well!
@aadesh_kale 6 months ago

Thank you for the awesome explanation. I have lost most of my highschool knowledge in Biology since I branched off academically, and this is just exciting to learn.
@Kifford 6 months ago

You still have your platapus beanie baby?! That in and of itself is amazing
@ghulamqadirhattar2791 6 months ago

Hello IAM from Pakistan and IAM so much glad to have found this channel it's really helpful for. Me as well thanks to you Sr ❤ and IAM looking forward for more interesting lecs and information thankyou
@OlTrev 6 months ago

Missed a "Bears. Beets. Battlestar Galactica." joke
@FoxyPlays7968 2 months ago

At 9:51 is an easter egg in red panda
@greenrachel769 6 months ago

thank you
@Rafael-vn2bo 6 months ago

Perfect explanation.
@TenzinT 14 days ago

great video and topic. please more about evolution 🙂
@engelbatterie 6 days ago

Super interesting 👌
@abayr0826 6 months ago

Nice video 👍📸
@budd2nd 6 months ago

Good video, very interesting 👍👍
@trevinbeattie4888 6 months ago

Hey… where’s Perry? 😉
@elextinto 2 months ago

Now i know the phylogenetic tree
@thatomofolo452 6 months ago

Great 👍👍
@Troy-ol5fk 6 months ago

Today I leaned pandas have six fingers 😂
@ChaosMatrix 6 months ago

Turns out, we were all Alabama all along.
@TheActresss 6 months ago

hallo
@canis2020 6 months ago

Who knew that "Trash Panda" was so accurate? Not this guy.