Common land planarians are easily identified by their triangular, spade-shaped head. Some can stretch out a foot in length.

The hammerhead worms, also known as the broadhead planarian, is toxic and dangerous enough that can harm pets and small ...

The worms are spread through the horticultural ... called the wandering broadhead planarian, said Peter Ducey, a professor in ...

Here are three of these amazing creatures. The ability of planarian worms to regenerate themselves if split in two has been known since the late 19th Century, but these animals went viral in 2012 ...