Hank explains speciation – the evolutionary process by which new biological species arise – in terms of finches, ligers, mules, and dogs.
Table of Contents
1) Species 0:30
2) Hybrids 1:52
3) Reproductive Isolation 2:48
a) Post-Zygotic 3:31
b) Pre-Zygotic 3:51
4) Allopatric Speciation 4:23
5) Sympatric Speciation 6:03
6) Biolography 6:32
7) Dogs 8:37
This video contains the following sounds from Freesound.org:
“bird tweet.aif” by tigersound
“ForestBirds.wav” by HerbertBoland
“morning_in_the_forest_2007_04_15.wav” by reinsamba
“AMBIENT LOOP – Perfectly Clear – Wilderness Hillside – FILTERED.mp3” by Arctura
“oceanwavescrushing.wav” by Luftrum
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Npcs frfr😂
As a 7 grader thx
10 years later
i wonder if it would be possible to artificially genetically isolate dogs enough to the point where they become different species…
Great episode and I'll study this in the second part of my biology undergraduate.
I wonder if anyone is working on a way to make ligers fertile.
I’m curious about why a bird song would deter or attract certain birds while dogs who look completely different may still mate together? It seems with the Galapagos Finches that ALL of the new species began to only mate with birds with the new bird call, is that so? Why? Is there any scientific logic to behavior?
5:53 listen on x0.25
Awww, that cardigan welsh corgi is the cutest little thing. The greyhound has a sweet face too.
So does that mean that given enough time, such different dog breeds will become different species?
I never wanted to marry a nerd this Hard
Does anyone have the edpuzzle answers
I met the Grants! Very nice people
Summary bio exam in 3.5 hours, wish me luck cramming
Alevel bio exam tmr😭 This video surely helps!
When the slow motion part hits, put the playback speed to 0.25
you wont regret it
You missed the fact that the Biological Species Concept or BSC is actually inadequate for describing most living things and it is simply applied pragmatically, in conjunction with alternative Species concepts, such as the Evolutionary Species Concept or the Phylogenetic Species Concept, etc.
Your video is the only speaking about sterility of ligers. For me this is main reason why breeding of these is total nonsence!
I have a corgi. Such a silly breed of dog.
There were conveniently 2 finches left after a “drought”… hmm…
How the hell do they change desu?
i was checking wikipedia about ligers and i saw this-
According to Wild Cats of the World (1975) by C. A. W. Guggisberg, ligers and tigons were long thought to be sterile; however, in 1943, a fifteen-year-old hybrid between a lion and an 'Island' tiger was successfully mated with a lion at the Munich Hellabrunn Zoo. The female cub, though of delicate health, was raised to adulthood.
In quarantine but still have an exam due tomorrow.
8:36
Anybody else see that Saint Bernard dog rush by behind Hank and his dogs at the end?!? Around 9:00 minutes. 😀
1:41 i was looking at my phone and i got scared af
5:28 You have been stopped
Those are the cutest dogs!!! ❤️
Then the furry squirrels turned into birds and flew away .
Painfullllllllllllllll !!!! You don’t have to try to make science “cool”. It IS cool
he said a bad word
I’m a heterosapien
Speciation: 2 species of the same kind, can give birth to a species, completely different from the one that procreated it?
I will believe when your mother gives birth to a cow.