Sperm whale skeleton (Physeter macrocephalus), at Las Salinas del Carmen, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Skeleton of Sperm Whale, Physeter macrocephalus, Caribbean Sea, Dominica

CT with an eight-inch tooth from lower right mandible (jawbone) of an adult bull Sperm Whale (Physeter macrocephalus), Gulf of California (Sea of Cortez), Mexico

Assorted Sperm Whale (Physeter macrocephalus) teeth from lower jaws of beached Sperm Whales in the mid-riff region of the Gulf of California (Sea of Cortez), Mexico.

Eight-inch tooth from lower right mandible (jawbone) of an adult bull Sperm Whale (Physeter macrocephalus) in the mid-riff region of the Gulf of California (Sea of Cortez), Mexico.

CT measures (9'8") the lower right mandible (jawbone) of an adult bull Sperm Whale (Physeter macrocephalus) in the mid-riff region of the Gulf of California (Sea of Cortez), Mexico. Model released.

Eight-inch tooth from lower right mandible (jawbone) of an adult bull Sperm Whale (Physeter macrocephalus) in the mid-riff region of the Gulf of California (Sea of Cortez), Mexico.

Marine Scientist Dan DenDanto works on the ribs of a 45' sperm whale articulation at the whaling museum in Nantucket.