For those of you who've never had the privilege of getting taunted by a rhino — OK, me neither — lemme tell you: that's his tongue! This sassy baby was born on April 20 in Tokyo's Ueno Zoo and he's already quite the character, even though he seems to be lacking ear hair.

There are less than 5,000 black rhinoceroses (one of several species) surviving in the world, but breeding programs help give these creatures a fighting chance. Are those fighting words? Maybe that's why he's sticking his tongue out — see for yourself below.