A Twitter war over cute animals began when the National Zoo announced their new seal pup.
The Virginia Aquarium took it as a challenge and responded with an otter and an osprey.
The National Zoo wasn't impressed with this or their baby turtle.
And then other zoos started getting involved, with the hashtag "#cuteanimaltweetoff."
It's resulted in an overflow of cute animal pictures on Twitter from zoos across the country.
The National Aquarium thinks that they have other zoos and aquariums beat.
Could this adorable baby alligator be the winner?
But let's be real. Everyone is a winner in a #cuteanimaltweetoff.
(Okay, this is probably our favorite, though. Don't tell any of the other zoos!)
Wait, but actually, we can't decide. It's way too hard.