On the Discovery Online web site, you will be able to listen to the songs of humpback whales . The Process 1. There are many different species of whales . They all are different sizes and eat different things. Make a list of five different species of whales and tell what each species eats.
Whales are mammals.
They are not fish. List the six ways how whales and fish are different . Life in the sea depends on a delicate balance between predators and prey. Whales fill an important part in the food chain . Find out what orcas and bivalves eat.