But it soon escalated. Just look at this little salamander.
And this squirrel glider.
And this tiny sea turtle.
It wasn't long before all sorts of biologists, and animals, were getting involved.
Proving that you don't have to be cuddly to be cute.
Although of course it does help.
Some animals, like this pony, were very keen to get involved.
Others were clearly used to the camera.
And some, like this hoary marmot, were extremely chill about the whole thing.
These caterpillars are on their way to say "hey".
This gecko would love to hold your hand.
And this as-yet-unidentified critter just wants to be your friend.
So while beauty may be in the eye of the beholder...
...it's really hard to argue that baby versions of literally any animal are not cute.
Kelly Oakes is science editor for BuzzFeed and is based in London.
Contact Kelly Oakes at email@example.com.
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