They do not live in a den or nest, they are travelling animals that just sleep where ever they are
Because that's where they live - offshore, far from the shore.
Orcas.
pod's
male orcas are called bulls.
I think they are called Orcas or killer shark
Yes, of course orcas are more powerful than sharks. That is one reason why orcas are called killer whales. Orcas are bigger, faster, smarter and stronger than sharks. Sharks are amazing killing machines though, but they are easy meals for orcas to eat!
pods
They are also called Orcas
No, orcas including other marine mammals do not have fur, but contain a special fat called blubber to keep warm.
Orcas live in an ecosystem that is called the Arctic.
They group in pods, which are made up of family members.
Baby orcas are called calves.