Coquerel's giant mouse lemur is heavily preyed upon by owls.

In New England the Soft-shell clam is preyed heavily upon by invasive Northern moon snails and green crabs.

Their shyness may be related to their solitary lifestyles, but may be because they are heavily preyed upon by many carnivorous species, including humans.

Overwintering Urophora larvae are heavily preyed upon by deer mice Peromyscus maniculatus.

Rattlesnakes are heavily preyed upon as neonates, while they are still weak and mentally immature.

Due to its tiny size, this tortoise is heavily preyed on by crows, jackals, dogs and a wide range of other predators.

In some species that are heavily preyed upon, such as the Polynesian blue-tailed skink, the tail colour is unusually retained right through into adulthood.

"The difficulties have preyed heavily on my mind."

There were two in particular who preyed heavily on Blade's mind.

However, larvae are also heavily preyed upon by another species of ant, Crematogaster aegyptiaca.