Animals

Kangaroo rats can drink sea water

Kangaroo rats are small rodents native to North America. The name derives from the fact that they…

They are all fish — sort of

What do muskrats, alligators, capybaras, beavers, skunk-headed coots, puffins and the barnacle geese have in…

Cookie Cutter sharks glow 10/29/19

The cookie cutter shark (also known as the cigar shark or luminous…

Venomous mammals

The difference between venomous and poisonous has to do with the way the toxic…

The largest lizards in the world are capable of “virgin birth.”

Can a blood-sucking parasite be a good parent?

Leeches, sometimes called vampire worms, are closely related to earthworms, but…