Where Do Species Come From? (Speciation): Crash Course Biology #15
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- čas přidán 31. 05. 2024
- How can you tell two species apart? It’s not always simple. In this episode of Crash Course Biology, we’ll learn about speciation-a process that can happen over millions of years, or within a single generation. Along the way, we’ll discover how a single species can split into two and how a reptile from New Zealand continues to stump scientists.
Chapters:
A Living Fossil 00:00
Species & Evolution 2:16
Species Concepts 3:36
What Separates Species 5:40
Allopatric Speciation 6:52
Sympatric Speciation 8:38
Review & Credits 11:48
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/1G...
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This is one of those “I didn't care, but now I have to know.” topics.
Fun fact: many hybrids are named based on the Father/Mother combination of the species. If a Polar bear is the dad and a grizzly is the mom the hybrid is a Pizzley. Same logic is applied for Ligers, Tigons.
A hebra is actually a thing. Zorse and Hebra are used interchangably based on which parent was male. It's important to differentiate because fundamental traits are often passed down by only the male or the female. This means that crossbreeds can have wildly different traits based on which parent was male, as foundational traits to their species don't get passed on.
CZcams threw you in my notifications as “you may like”. I love your enthusiasm, this was really interesting.
Robert Axelrod fixed you up with Harnessing Complexity
Replication
Variation
Interaction
Selection
Love Crash Course! Such great and researched information!!
if a Tiger + Lion = Liger (or Tigon, depending on which is the male/female parent), Grizzly + Polar bear = Pizzly bear, Coyote + Wolf = Coywolf, Horse + Zebra = Zorse, Zebra + Donkey = Zonkey, why is Horse + Donkey = MULE and not Honkey?
Well done!!!
Excellent way to sneak up some serious science in this 101-style course ☀️
I just went over this unit in my biology class. Very interesting topic.
Thank you for your job. You have taught me more than any professor ever will
I really love this video thanks❤️
You are very good.
❤wow always informative❤
An interesting topic
great host, love them and their enthusiasm
What makes plants so prone to polyploidy? Is it something about their structure that makes it happen more often, or is there something about the way of life in other kingdoms that makes polyploidy less successful among them? Is it as common among fungi as with plants?
Well, when a mommy species and a daddy species love each other very much...
Anyone else know 15 seconds in that it was a tuatara bc of John’s book Turtles all the Way Down?
Wow
Aren't there videos on crash course related to mth 111 ? 😭 (algebra and trigonometry)
this saved me for my mammalogy exam
Hey. I just finished hank's crash course on biology. You think you can hang with the man who coined "biolography"? We shall see.
💗💗💗
🎉🎉🎉💫
Dami mong hugot teh
That was a bit oversimplified. and it did not really answer the questions I have about speciation.
h o b r a
h e b r a
Third!
because of climate change in northern canada grily have sucessiflly interbred i can not rember what they are called so oops you are wrong sir.
Straight from the zorse's mouth -
(Sorry not sorry)
It's pronounced Ki (like hi) bab (like grab).
We all know humans are not evolving they're devolving