A species of dolphin is born naturally blind in the Indus and Ganges rivers in South Asia. These dolphins have a highly sophisticated sonar system and swim on only one side of their body.

Dogs have two sets of teeth, just like humans. They first have 30 "puppy" teeth, then 42 adult teeth.

According to studies, men prefer to have white bedrooms and women prefer to have blue bedrooms.

AMAZING FACTS