The Basenji dog is the only dog that is not able to bark.
4
Spiders have transparent blood.
56
The male praying mantis cannot copulate while its head is attached to its body. The female initiates sex by ripping the males head off.
85
When you shave a guinea pig it looks like a little hippo.
19
A hummingbird weighs less than a penny.
1k
The sloth (a mammal) moves so slowly that green algae can grow undisturbed on its fur!
104
There are no penguins in the North Pole.
56
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11