953212
9780836828825
Due to overhunting, only about 10,000 humpback whales live in the world's oceans. Learn how humpbacks squirt water through their baleen to trap the krill they eat and join the humpback's four-thousand-mile migration between the northern and southern hemispheres. Full-page photos show humpback whales blowing bubbles, protecting their calves and leaping out of the water. Engaging text includes explanations of regional variations among these whales and how human pollution may threaten the humpbacks that remain.Victor Gentle is the author of 'Humpback Whales (Whales and Dolphins)' with ISBN 9780836828825 and ISBN 0836828828.
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