Smithsonian's National Zoo kicked off the trend with a photo of a seal just born on its premises, as Mashable reports.
We welcomed a gray seal pup Jan. 21. The pup appears to be nursing, moving & bonding well w/ mom. https://t.co/l0Bzu7g8ek #Squee pic.twitter.com/nEhuJe6vBk
— National Zoo (@NationalZoo) January 25, 2017
@SarahJanetHill #challengeaccepted We see @NationalZoo 's seal pup, and raise an otter/osprey combo. pic.twitter.com/D9zDWXxuDb
— Virginia Aquarium (@VAAquarium) January 25, 2017
.@VAAquarium This is Redd, our endangered Bornean orangutan infant. And he is the cutest. Do you fold yet? #challengeaccepted pic.twitter.com/ED6WiZun1R
— National Zoo (@NationalZoo) January 25, 2017
@NationalZoo Don't worry, we're still here. pic.twitter.com/0Qm9dcvMD9
— Virginia Aquarium (@VAAquarium) January 25, 2017
.@VAAquarium Yawn. pic.twitter.com/szDSpmWnud
— National Zoo (@NationalZoo) January 25, 2017
@VAAquarium @phillyzoo @ZooATL @BronxZoo @SarahJanetHill Ahem, the world's smallest deer checking in for the #cuteanimaltweetoff. #pudu pic.twitter.com/b4sZbQTz56
— Queens Zoo (@thequeenszoo) January 25, 2017
"Excuse me, can I get in on this, too?" #CuteAnimalTweetOff pic.twitter.com/MATHGrJgvI
— Elmwood Park Zoo (@ElmwoodParkZoo) January 25, 2017
Welcome this cozy cheetah cub to the #cuteanimaltweetoff! pic.twitter.com/vdhUKmyRqa
— Cincinnati Zoo (@CincinnatiZoo) January 26, 2017
Can't believe we almost missed the #CuteAnimalTweetOff! Thanks for letting us know @CabernetLvr! pic.twitter.com/9gTgyc5i9A
— Seattle Aquarium (@SeattleAquarium) January 25, 2017