Have you ever had a mole out in the backyard that spends all day digging tunnels through your lawn? Try to be too mad, it's just looking for food.
Why do frequent workers tolerate these freeloaders? Well, infrequent workers actually do pull their weight, but only when the time is right.
Believe it or not, the Australian burrowing cockroach, also known as the rhinoceros cockroach, is one of Australia's most popular pets.
Where did snakes lose their limbs? Find out on this Moment of Science.