Condoms were originally made of animal intestines or linen.
347
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
The reindeer is the only mammal that can see UV light.
17
Tigers can see 6 times better at night than humans.
305
The elephant brain weighs about 6,000g.
274
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205