We all thought we knew why chameleons change color, but most of us were probably wrong. Chameleons on today’s Moment of Science.
Toxins produced by the nasty streptococci bacteria are released at the site of infection and are absorbed into the infected person’s blood stream.
One parsec is three point two six light years. And contrary to popular belief, a light year isn’t a unit of time at all! It’s also a unit of distance.