General Facts
What do all mammals have that makes them warm-blooded?
Hair or fur
Where can marine mammals be found?
In the oceans around the world
What do seals eat?
Fish, octopus, shellfish
What do dolphins do when they sleep?
They keep half their brain active and one eye open
What helps marine mammals stay warm in cold water?
Blubber
Do marine mammals give birth to live young or lay eggs?
They give birth to live young
Do some marine mammals live near the equator?
Yes, some live near the equator
What do otters eat?
Fish, crabs, crayfish, frogs
Why do dolphins keep one eye open?
To watch for predators and threats
What does “marine” mean?
It means “of the sea” or “related to the sea”
Name two examples of marine mammals.
Otters, seals, whales, dolphins, walruses, polar bears (any two)
Name one place with cooler waters where marine mammals live.
The Arctic or Antarctic
What do polar bears mainly eat?
seals
How does a seal’s blubber help it stay safe?
It makes it hard for predators to bite them
Which marine mammal eats crabs and frogs?
otters
What is the special fat layer called that keeps marine mammals warm?
Blubber
What are the two oceans mentioned in the text?
Arctic and Antarctic oceans
What other animal can polar bears eat if they catch them?
whales
Which two animals are dangerous predators for seals?
Killer whales and large sharks
Which marine mammal can be both a predator and prey?
Polar bear (it hunts seals but can be hunted by humans or whales)
How are marine mammals different from land mammals?
They can live most of their lives in water
Why do marine mammals live in different parts of the world?
Because they adapt to warm or cold water conditions
Why do marine mammals eat different foods?
Because each species has a different diet and habitat
Why do most predators not try to catch seals?
Because seals are too thick and hard to catch
Why do you think marine mammals need to be strong swimmers?
To find food, escape danger, and travel long distances