Surprising Cameos From Celebrities Before They Were Famous

Black Widow Material

Johansson has a foot in several facets of the film industry. She's starred in rom coms like The Nanny Diaries and Valentine's Day. She's played superhero Black Widow in several Marvel films. She's also married to SNL writer Colin Jost, so she's familiar with the world of comedy.

The More You Know

The Guinness brewery supported all of it's employees who chose to fight in WW1. They were paid half of their wages while away, and their jobs were guaranteed upon their return. The brewery also sent them care packages containing chocolate and condensed milk.
The world's most toxic mineral is cinnabar.
The glass winged butterfly lacks colored scales, which makes its wings transparent and helps it avoid predators.
A chameleon's tongue is twice as long as its body.

Post originally appeared on Upbeat News.