Sperm whales teeth and their use

Numerous other agreements also protect the whales throughout much of their range. Its surrounding wall, known as the case , is extremely tough and fibrous. Mol Phylogenet Evol. August—September The sharp beak of a consumed squid lodged in the whale's intestine may lead to the production of ambergris , analogous to the production of pearls in oysters. United States Fish and Wildlife Service.

Physeter macrocephalus Linnaeus , Northern right whale dolphin L. Their escape is prevented by closing off the route to the ocean with other boats or nets. Toothed whales are capable of making a broad range of sounds using nasal airsacs located just below the blowhole. Lactation proceeds for 19 to 42 months, but calves, rarely, may suckle up to 13 years. Jim Serpa, a former Doheny State Beach supervisor, knew what he was looking at when a lifeguard at San Onofre State Beach sent him photos of an odd creature lying on the rocks. Bowheads have the greatest number and diversity of songs of all whales and they like to improvise, just like jazz musicians.

When Serpa inspected the compact body and its wrinkled brown to blue-gray back, he noticed what appeared to be a bullet hole. Kandu V broke her jaw, which severed an artery, and then bled to death. Until , the species was generally known as P. Commerson's dolphin C.