During warm weather hippopotamus's secrete sweat that is pink. This substance not only cools them down but also helps fight infections of the skin. See more

Most dust particles in a US house are made from dead skin. See more

An adult human heart weighs about 10 ounces and beats over 100,000 times a day See more

At birth, a panda is smaller than a mouse and weighs about four ounces. See more

Hot water weighs less than cold water for a given volume. See more

A teaspoon of neutron star material weighs about 110 million tons. See more