Countries of the World

Hyenas don’t just laugh for fun. Scientists say that the pitch and the note frequency (or tone) of a hyena’s laugh can give an indication of its age and social status. Female spotted hyenas are more muscular and more aggressive than their male counterparts. This is because the females have three times as much testosterone in their bodies. As a result, spotted hyena societies are matriarchal. Even baby girl cubs rule over the boys.

Hundreds of years ago, Robert Hooke published a book called Micrographia that included hand-drawn images of samples observed under a microscope! Hooke, who we mentioned in a previous fact, is often credited as the discoverer of cells, after studying cork under the microscope.

The Pokémon universe has quite the parasite in it. Remember Parasect? He’s actually two Pokémon. The crab is actually being possessed by the mushroom section of the mon. Bizarre, no?