Sperm whale(physeter macrocephalus) Gulf of California. The tail stock "knuckles" of an old sperm whale.

1 adult animals adult animal animal theme animal themes animals caudal knuckle caudal knuckles cetacean cetaceans gulf of california horizontals horizontal in the wild knuckle knuckles landscape mammals mammal marine animal marine animals marine life marine life no one no people no person no body no one nobody one animal one pacific ocean physeter catodon physeter macrocephalus pacific sperm whale sperm whales sea animals sea animal sea creatures sea creature sea of cortez sea life sealife seas and oceans tail tails whale whale knuckle whale knuckles whales wild animal wild animals wildlife wild