80-odd years of happy is probably the best cover of Pharrell Williams' hit "Happy" you will ever see.

Anesthesiologist lets guy knock himself out. You can see the moment he loses consciousness.

Vennu Mallesh - It's My Life What Ever I Wanna Do

Great Doctor giving a small child a shot. He is so tricky the kid barely notices. The tissues saved the day.

One monkey does not like the fact she is getting cucumbers while the other is getting grapes.

Matty, a baby three toed sloth giving Claire (sloth handler and tour guide extraordinaire) a hibiscus petal.