Sometimes the humpback will dive with a fantastic movement known as a breach.During breaching the whale uses its powerful tail flukes to lift nearly twothirds of its body out of the water in a giant leap.A breach might also include a sideways twist with fins stretched out like wings, as the whale reaches the height of the breach.
A humpback whale breathes air at the surface of the water through two blowholes which are located near the top of the head.It blows a double stream of water that can rise up to 4 metres above the water.
The humpback has a small dorsal fin located towards the tail flukes about twothirds of the way down its back.Other distinguishing features include large pectoral fins, which may be up to a third of the body length, and unique black and white spots on the underside of the tail flukes.These markings are like fingerprints: no two are the same.
Humpback whales live in large groups.They communicate with each other through complex “songs”.
Quick Facts
Size: 14m18m in length;
3050 tons in weight
Living
environment: Open ocean and shallow coastline waters
Migration: From warm tropical (热带的) waters, where they breed, to cold polar waters, where they eat
Diet: Shellfish, plants and fish of small size
Hunting: Sometimes in groups, in which several whales form a circle under the water, blowing bubbles that form a “net” around a school of fish.The fish are then forced up to the surface in a concentrated mass.
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