Steve Backshall reveals the supersucker of all sharks, the nurse shark. This shark uses its specialist mouth and vacuum-like suction to devour its dinner. Show more
Discover 11,128,835 listings and 279,767 playable programmes from the BBC
Steve Backshall reveals the supersucker of all sharks, the nurse shark. This shark uses its specialist mouth and vacuum-like suction to devour its dinner. Show more