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Cetacea

Whales

Cetacea

Dolphins

Cetacea

Porpoises

Mysticeti

Baleen Whales

Odontoceti

Toothed Whale

Carnivora

Placental Mammals

Ursidae

Bears

Mustelidae

Weasels

Pinnipedia

Seals in general

Otaridae

Eared seals (sea lions and sea otters)

Phocidae

Earless seal

Odobenidae

Walrus

Sirenia

Manatee

Myoglobin

A red protein that caries and stores oxygen in muscle cells.

Bradycardia

An abnormally slow heart reaction.

Rete mirable

A complex of arteries and veins lying very close to each other, found in some vertebrates.

Apneustic breathing

An abnormal pattern of breathing characterized by deep, gasping inhilation with a pause at full inhilation followed by a brief, insufficient release.

Spermaceti Organ

Highly prized for it's oil.

Melon

A mass of waxy material in the head of dolphins and other toothed whales, thought to focus acoustic signals.

Lower Mandible

Where an animal receives echolocation signals.

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