Shark Facts and Characteristics

How long have sharks been in the oceans?

• Over 100 million years

• Over 200 million years

• Over 300 million years

• Over 400 million years

What is a key difference between sharks and mammals like dolphins?

• Mammals have scales, while sharks have hair.

• Mammals breathe using lungs, while sharks breathe using gills.

• Mammals produce milk, while sharks lay eggs.

• Mammals have fins, while sharks have flippers.

What is the primary material that makes up a shark's body?

• Bone

• Cartilage

• Muscle

• Scales

Which type of shark lives in the deepest parts of the ocean?

• Greenland shark

• Sand shark

• Portuguese shark

• Whale shark

What is the largest living fish?

• Great White Shark

• Hammerhead Shark

• Whale Shark

• Dwarf Lantern Shark

What is a characteristic feature of shark teeth?

• They are flat and round.

• They are constantly replaced throughout their lives.

• They are only found in the upper jaw.

• They are used for grinding plants.

What is the primary diet of most sharks?

• Plankton and algae

• Fish, mollusks, and crustaceans

• Seabirds and marine mammals

• Turtles and seals

What unique sensory ability do sharks possess?

• They can detect changes in water temperature from miles away.

• They can communicate using complex vocalizations.

• They have a sixth sense to detect electric fields.

• They can see in complete darkness.