BIOL 331
Lecture 14
Marine Mammals

 

Order Cetacea

General Characteristics

Classification:

Life History of Cetaceans

Feeding Behavior

Fastest of the large whales is the Fin Whale, bursts up to 32 mph.

Reproduction

Theromoregulation

Migration

Breaching & Beaching

Conservation

Suborder Mysteceti

Suborder Odontoceti

Order Carnivora (The Pinnipeds)

General Characteristics

Classification

Comparison of seal families:

 

  Otariidae Phocidae
ear flaps yes no
fore flippers long, hairless or partially haired, claws away from flipper edge shorts, hairy, claws on each digit.
hind flippers large, can be rotated under body. intermediate, cannot be rotated under body.
Testes external in a scrotum. separate outside body cavity in the hypodermal layer of skin.
Swimming Splashing back and forth figure eight motion with back of body, fore limbs for control extend head and neck for steering and use a sort of breast stroke

 

Life History of Pinnipeds

Feeding Behavior

Reproduction

Metabolism

Conservation

Order Carnivora Family Mustelidae (Otters)

General Characteristics.

Life History

Feeding Behavior

Reproduction

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