“I love how the other cow is teaching him how to moo. His face is like OH THATS HOW THAT WORKS,” wrote one commenter. “His little baby moo sounds like a squeaky door and I love it ...

Their name comes from the male’s deep, resonant “mooing” call, which sounds a lot like a cow or bull. However, the weird and upsetting sound made by the bullfrog in this video from Mark Roe ...