Marine Mammals

Mammals have the largest ____ of all vertebrates.

• brain

• heart

• liver

• lungs

Which of the following is NOT a use for blubber in a marine mammal?

• keep warm

• buoyancy

• food reserve

• attack prey

What are the animals often referred to as "unicorns of the sea" (because of their single tusk)?

• narwhals

• walrus

• manatees

• beaked whales

Osmoregulation is used in mammals for what purpose?

• reproduction

• expelling excess salts

• toxins

• lung activity

What do baleen whales have two of, that toothed whales have only one of?

• stomachs

• bladders

• blowholes

• set of eyes

Which type of whale was in "Moby Dick"?

• Blue

• Gray

• Sperm

• Bowhead

Seals and Sea Lions are examples of what type of mammals ___?

• Cetacean

• Felines

• Pinnipeds

• Sirenians

Manatees and Dugong feed on ____.

• humans

• fish

• small crustaceans

• sea grass

Which otter species lack blubber?

• both otter species

• neither otter species

• only sea otters

• only marine otters

Which of the following characteristics is NOT a characteristic of the Polar Bear?

• large head

• rounded ears, small tail

• short stout neck

• white to yellow fur