The "second brain".

1. The typical brain is about 2% of a body’s weight but uses 20% of its total energy and oxygen intake. 2. Your brain is 73% water. It...

Infants see red, yellow, green, blue, and purple as different color categories.

Babies’ gazes suggest we are born understanding color By Michael PriceMay. 8, 2017 , 3:00 PM Unless you’re colorblind, you probably have...