Starvation can also threaten their lives, especially in young whales.
The young probably become independent of their mothers at about one year of age, as is the case in most whales.
Fish are found in abundance, as well as whales, dolphins and large oysters.
The most notable adaptation is the development of echolocation in whales and dolphins.
I knew that Luke was interested only in whales and ships.
A: I've always had an interest in whales partly because they're the largest animals ever to have lived on earth.
New England, which led the world in killing whales in the last century, now has 22 whale watching boats.
Similar modifications of the upper arm can be seen in whales, too.
The parasites have been found in dolphins and whales.
But a sudden decline in whales saw Edward's exit at the end of 1840 followed by the firm's bankruptcy.
