The lower jaw looks flimsy compared to the upper jaw, which sticks out beyond it. But it is strong enough to deter sharks, snap whalers' rowing boats in half and to make short work of giant squid - the whale's prime prey. To discover squid sperm whales must dive into deep water. This species is discovered in all the oceans from the world even though only solitary bulls venture into polar waters. The basis of sperm whale society is the herd of females and young. Calves remain with their mother feeding and growing in warm waters such as the Caribbean. …show more content…
The solitary bulls mostly take squid of 30-1OOcmlong, but some bear the sucker scars of battles with monster squid. A bull grows about the ocean's abundance until it is about 30 years old when it reaches full sexual maturity.
By this time its l3-20m long - much bigger than a female. At particular times from the year mature bulls head for the tropics, occasionally migrating several thousand kilometres in search of females. The sperm whale has two titchy cousins. The pygmy sperm whale, up to 4m long, seems to live in oceanic waters while the dwarf sperm whale, less than 3m lengthy, inhabits waters from the continental