MMB Quiz 1 Families

phocidae

seals (earless, short neck, use posterior flippers for swimming)

otariidae

sea lions and fur seals (long neck, eared, anterior flippers for swimming)

odobenidae

walruses (blubber for insulation, paddle shaped flippers for swimming, streamlined bodies)

Mustelidae

sea otters (lack blubber, have thickest fur of any mammal, breed and give birth at sea, keystone species)

ursidae

polar bears (thick layer of fat, no blubber, only marine mammals on its family)

sirenidae

manatees and dugongs (front flippers, no rear flippers, strict herbivores)

Mysticetes- balaenidae

North Atlantic right whale

Mysticetes

filter feeders, baleen plates, 2 blow holes, no teeth

Balaenopteridae- mysticetes

mince whale, humpback whale

neobalaenidae- mysticetes

pygmy right whale

eschrichtiidae- mysticetes

grey whale

Odontocetes

single blow hole, echolocation, melon, teeth

physteridae- odontocetes

sperm whale

kogiidae- odontocetes

pygmy whale

ziphiidae- odontocetes

beaked whales

platanistidae- odontocetes

Indus River dolphin

iniidae- odontocetes

amazon river dolphin

lipotidae- odontocetes

Yangtze River dolphin (almost extinct)

monodontidae- odontocetes

narwhal, beluga whale

delphinidae- odontocetes

ocean dolphins (common dolphin)

phocoenidae- odontocetes

porpoise