Did you know that colossal squid (Mesonychoteuthis hamiltoni) are not only prey of sperm whales but sharks, too?

image source bbc

The southern sleeper shark (Somniosus antarcticus), a species of sleeper sharks like its northern counterpart, the greenland shark and often confused with it, is known to feed from cephalopods, among it mature adult colossal squid, but also fish, marine mammals and birds (proven by its stomach content). The southern sleeper shark is equally as sluggish as the Greenland shark and reaches a length of 14 ft -4.4 m. To win against the world largest known invertebrate with the biggest eyes, only capable of bursts of speed itself, is no mean feat.

Sources: herehere and here