Some of the earliest internet moments — Keyboard Cat, for instance — centered on critters. And that hasn't changed, even as the internet grew infinitely more complex and vast. The online world today is hardly what it was in 2020, let alone what it was in its infancy. Yet, all this time, cute animals have been a staple of killing time online.

Only a month after Thailand's adorable baby hippo Moo Deng was unveiled on Facebook, her fame became unstoppable both domestically and internationally. Zookeeper Atthapon Nundee has been posting cute moments of the animals in his care for about five years.

Moo Deng baby hippo memes and photos have become the latest adorable animal craze to barrel through social media feeds. The tiny pygmy hippo has the chaotic nature of Brat Summer but can also be incredibly cute with her beady little eyes and a mouth that never seems to close, as it must scream.