1. Marine Mammals
Classifications

2. Whales Dolphins and Porpoises- Order Cetacea
Cetaceans are further broken down into:
Suborder Mysticeti (Beard Bearing)-Baleen Whales
Suborder Odonticeti (Tooth Bearing)-Sperm whales and Dolphins

3. Cetaceans Continued
Baleen Whale such as, Gray, Blue, Fin, minke and Humpback’s are Rorqual Whales. They have pleats under the mouth that aid in feeding (Baleen).
Mysticeti: 2 blow holes
Odonticeti: 1 blow hole
The Killer Whale is the largest member of the Dolphin Family.

4. Cetaceans Anatomy baleen Mellon
Sperm Whale has a large spermaceti organ that is also called the Mellon
Baleen whales such as the Humpback only have baleen on the top jaw.

5. Rorqual pleats of a Fin whale

6. Polar Bears, Sea Otters, Manatees (Order Carnivora)
Polar Bears- Family Ursus (Bear Family).
Scientific Name is Ursus Maritimus (Sea Bear)
Sea Otter- Family Mustilidae (Weasel Family)
Manatee- Order Sirenia (Named for the Sirens of Greek Mythology because sailors believed them to be Mermaids)

7. Order Pinnipedia (Feather-Foot)
Seals, Sea Lions and Walruses
Differences between Seals and Sea Lions:
Seal
Sea Lion
Ears
No External Ears
External Ears
Propelling fins
Posterior
Anterior
Neck
Short
Long
Land Movement
Caterpillar
Rotate Hips and Walk
Nails on Flippers
Yes No

8. Pinnipeds Continued The Walrus is the largest Pinnipedia Species
Southern California has two species of Pinnipeds: California Sea Lion, Harbor Seal
The Leopard Seal is the “Polar Bear” of the Antarctic