-
Upload to Facebook Tokyo, Japan has been the world's most populous megacity since 1955. -
Upload to Facebook The pupil of the eye expands as much as 45 percent when a person looks at something he/she finds pleasing. -
Upload to Facebook Sharks have a strong sense of hearing. They can hear a fish thrashing in the water from as far as 500 meters away! -
Upload to Facebook Turtles will live in almost any climate warm enough to allow them to complete their breeding cycle. -
Upload to Facebook Cats use their whiskers to check whether a space is too small for them to fit through or not. -
Upload to Facebook Rats breed so quickly that in just 18 months, 2 rats could have created over 1 million relatives. -
Upload to Facebook In Japan, there is braille on beer cans. -
Upload to Facebook When playing with female puppies, male puppies will often let them win, even if they have a physical advantage. -
Upload to Facebook Polar bears have an excellent sense of smell. This ability helps them detect seals from nearly a mile away. -
Upload to Facebook An owl has three eyelids: one for blinking, one for sleeping and one for keeping the eye clean and healthy.
