Seals and Their Characteristics

Dr. Jo, a scientist with experience in various fields, explains the differences between seals and sea lions. She highlights the anatomical distinctions, such as ear structure and flipper orientation, and categorizes them into true seals and eared seals. The video also discusses the number of species within each group and their evolutionary backgrounds. Dr. Jo encourages viewers to engage in secondary research to enhance their understanding of these marine animals.

What is Dr. Jo's profession?

• Scientist

• Biologist

• Chemist

• Physicist

Where are the ears of seals located?

• On the sides of their heads

• Inside their heads

• On top of their heads

• Behind their flippers

How do seals move on land?

• By dragging themselves with their fore flippers

• By using their rear flippers

• By walking on all fours

• By hopping

What is a distinctive feature of sea lions compared to seals?

• They have shorter fore flippers

• They cannot walk on land

• They have external ear flaps

• They have internal ears

How do sea lions move on land?

• By walking on all fours

• By walking on their rear flippers

• By hopping

• By dragging themselves

What are seals with internal ears and no ear flaps called?

• True seals

• Eared seals

• Fur seals

• Sea lions

How many species of true seals exist?

• 7

• 3

• 10

• 18

What is the common ancestor of the Phocidae thought to be?

• A cat-like ancestor

• A bear-like ancestor

• A wolf-like ancestor

• A weasel-like ancestor

Which group includes the walrus?

• Phocidae

• Otariidae

• Odobenidae

• Cetacea

What is a key scientific skill mentioned by Dr. Jo?

• Fieldwork

• Secondary research

• Data analysis

• Conducting experiments