they hunt for predators and eat anything that looks good
they survive by eating but first they like to hunt by their echolocation they eat seals, birds, sea lions , and also sea turtles but they would stop their prey which means their food with their sharp teeth they have teeth that can go up to 56 teeth and orcas like too hunt a lot of food when they see the bird they jump out in the air out of water and catches the seabird and they have patches on top of their eyes and a patch by their dorsal fin.
Like their other mammalian cousins, the dolphins, they must eventually come up for air. Their blood is able to absorb enough oxygen at each surfacing to allow them to remain below water for 5-20 minutes, but if trapped below ice, they would drown.
A whale is adapted to survive in the deep waters of the ocean. It has a layer of fat that keeps it warm under water.
The same way every living thing does - food, and not being killed. Those that make it past 'infancy' have few predators. They eat plankton, krill and small fish.
whales survive under the water by swimming in the water and coming up to brethe through its blowhole.
they hardly do anymore cause of the whalers now and days
Whales survive by eating krill.
They couldn't survive out of water.
Whales and dolphins can't communicate under water
becoz there not in water. they need water to survive
swim.
Under it
Whales survive by eating krill.
A thick layer of blubber
Without water for support, their bulk puts pressure on their internal organs.
Whales and Dolphins are born under water and aren't fish.
so they can brethe and they were meant to be under water animals
That is true. Whales and dolphins do not have gills, yet they survive in the ocean. They do this by coming up for air about every five minutes, take a deep breath, and hold it while they are under.
They've got literally tons of blubber that insulates them from the cold.