The best time to observe or count earthworm populations is early- to mid-spring (often April in North Central states), or late fall (November). Earthworms have both male and female sexual organs. Most ...

Earthworms are hermaphrodites Earthworms possess both male and female reproductive organs, making them hermaphrodites. When two worms mate, they both produce fertilised eggs. In ideal conditions ...

Some worms have the uncanny ability to regrow after being cut in half, and the science behind it, as well as notable examples, can be surprisingly complicated.

MIGRATION: This species is nonmigratory. BREEDING: Little is known about the reproduction of this species in particular. Earthworms are monoecious, meaning that both female and male organs are present ...

In honor of the Year of the Snake, let’s appreciate the strange anatomy and evolution of these slithery reptiles ...