Doggie Domestication
Storyboard Text
- Doggie Domestication
- This is a dog! Her name is Daisy, and she's a service dog. Her species wasn't always this domesticated though, so why are dogs different now?
- Daisy's ancestors looked like this! They were wolves, completely wild, and quite big.
- After humans met wolves, they cooperated together, eventually producing a domesticated species of dog.
- They are much smaller than wolves, and had branched off to a completely different species.
- Humans played a role in separating them from the general population, and selectively breeding them to produce different breeds.
- Wolves evolved into dogs through genetic mutations and evolution. Their isolation was behavioral.
- One example of a mutation is a version of the K locus gene that dogs carry. It's dominant to wolves' lighter coat colors.
- This gene isn't present in wolves; it sends messages to the pigment cells which causes a large production of melanin.
- Humans have created many different kind of dog breeds, some that are even half wolf!
- Though the species are diverged from each other, they are able to breed with each other, and live in this world simultaneously.
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