There are even more that, while classified, are animals scientists know little about, which means the average person knows even less about them. From insects to deep-sea creatures, some animals ...

“It’s hard to even know if a panda is pregnant,” says BFX ... birth until Zhang arrives and because of his devotion to the animals—worked with Schaller in the field.

Many animals show signs of high intelligence, including strong memory, self-awareness and communication skills.