Mouth of a saltwater crocodile (by Spectacular Jumping Crocodile Cruise)

A white-backed vulture watches a spotted hyena as it wanders away from the carcass of a zebra.

Photo by Charlie Hamilton James

Caiman with a lungfish (by Richard Denyer)

Colchester Zoo hyenas (by nicknack68)

Crocodiles (by rabinovitsch)

Komodo dragon (by escapethecrowds)

Lioness takes down a zebra (by Richard Denyer)

A beautiful sight - Northern Territory (by Spectacular Jumping Crocodile Cruise)

Hyenas in the early morning sun (by bradleyvdw)

Saltwater crocodile (by jessebarnesphotos)