I lay Eggs

I am big and blue. I am a Mammal.

I live in the ocean. I can swim.

Who I am?

I am brown. I have a mane.

I like to eat zebras. I roar.

Who I am?

I don't have legs. I don't have arms.

I don't have ears. I live in the water.

I can swim well.

Who I am?

I eat insects. I live in the pond.

I hop. I am green.

Who I am?

I am small. I have feathers.

I lay eggs. I can sing and fly.

Who I am?