“People are surprised to see them because they are very unusual,” John Reynolds, a laboratory biologist and worm expert, told CTV News Toronto. Hammerhead flatworms are, you guessed ...

The wandering broadhead planarian (Bipalium adventitium), or hammerhead worm, was first sighted in Ontario in 2017, and the potentially dangerous invasive species of large carnivorous landworm has ...

The hammerhead worm, or shovelhead worm, has been found in parts of the GTA, and as spring melts the snow, these little predators will be slinking in your garden.