Humans are mammals. Humans sweat when their bodies get hot. Sweat is the body’s natural reaction. It helps the body to cool off.
Photo Credit: Arianna Palazzi/Flickr RF/Getty Images
In the Know
Where on Earth Are Milan and Cortina?
This is the Olympic symbol. The Winter Olympics take place … read more
In the Know
The Winter Olympics and Paralympics
The Winter Olympics and Paralympics begin this February. These are … read more
In the Know
Bats Use Sound to “See”
Most bats are active at night. It is dark at … read more