The type of fat that many marine mammals have is called blubber. Blubber is a thick layer of fat located beneath the skin, providing insulation to help maintain body temperature in cold water environments. It also serves as an energy reserve and aids in buoyancy. This adaptation is crucial for survival in the often frigid habitats of marine mammals.
No. Sharks are a type of fish. Porpoises are mammals.
Polar Bears are marine mammals.
What? your question makes no sense. Byt usually marine animals have fins or flappers to glide them through water.
Dolphins are marine mammals closely related to whales and porpoises.
Dolphins are marine (sea-dwelling) mammals - they breath air, and give birth to live young.
The big whales as a rule don't eat marine mammals, but Orcas - killer whales - will eat seals, sea lions, and even other whales when they have the chance.
monkeys
Whales, dolphins and manitees aka: marine mammals
In mammals, it's called lactation.
The Sea Otter (Enhydra lutris) is adapted to an aquatic environment. As their name suggests, they are marine mammals, but unlike other marine mammals they rely on their incredibly thick fur to keep them warm--other marine mammals have blubber for the same purpose.
Seals have a closed circulatory system with a four-chambered heart, similar to other mammals. This system allows for efficient oxygen distribution throughout the body and enables seals to thrive in their marine environment.
ichthyosaurs