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ALL ABOUT WHALES!
What is a Whale? Whale Information Sheets Anatomy and Behavior Extreme Whales Whale Myths Whale Evolution Whale Classification Whale Glossary Whale Activities Whale Index
Whale Glossary
A B C D E F G H I J K L M N O P Q R S T U-Z

H


HALF-LIFE

The half-life of a radioisotope is the amount of time it takes for half of the radioisotope to decay.

HARPOON

A harpoon is a long, spear-like weapon that was used by whalers to kill whales.

HERBIVORE

Herbivores are animals that eat plants. No whales are herbivores.

HERD

A herd is a group of whales (usually used for baleen whales), also known as a pod.

HETEROTROPH

A heterotroph (or consumer) is a living thing that eats other living things to survive. It cannot make its own food (unlike plants, which are autotrophs). Animals are heterotrophs.

HIMALAYECETUS

Himalayecetus subathuensis is the oldest-known whale fossil, about 53.5 million years old. Its fossilized jawbone and teeth were found in the Simla Hills of northern India, in the foothills of the Himalayan mountains. This area was underwater (in the Tethys sea) during the Tertiary period (when India was an island off Asia). This whale may have spent some of its time on land.

HOMEOTHERMIC

Homeothermic animals maintain a constant body temperature. Birds and mammals are homeothermic.

HUMPBACK WHALE

Megaptera novaeangliae is baleen whale which arcs its back into a hump before it dives. Humpback behavior includes acrobatic leaping out of the water, slapping of its fins and flukes on the water, and complex song that includes long sequences of squeaks, grunts, and other sounds. They eat mostly krill. plankton, and herring and are gulpers. It is a protected species.

HYDROPHONE

A hydrophone is a device that is used to detect and record underwater sounds.

Zoom Whales
Whale Glossary
A B C D E F G H I J K L M N O P Q R S T U-Z

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