Shark Biology and Behavior

Sharks are formidable predators with powerful bite forces and unique sensory abilities. They can detect electromagnetic fields and have an acute sense of smell. Unlike bony fish, sharks use their oily livers for buoyancy and have nearly 360-degree vision. They protect their eyes by rolling them back during attacks. Sharks must keep moving to breathe, using RAM ventilation, and can shut down their brains while swimming. Their skeletons are made of cartilage, not bones. Sharks have existed for over 450 million years, predating dinosaurs, and are highly evolved predators.

What is the maximum bite force a shark can generate?

• 30,000 pounds per square inch

• 50,000 pounds per square inch

• 20,000 pounds per square inch

• 40,000 pounds per square inch

How do sharks detect the presence of other organisms in the water?

• By detecting electromagnetic fields

• By hearing underwater sounds

• By sensing water temperature changes

• By seeing movement in the water

What allows sharks to have a nearly 360-degree field of vision?

• They can rotate their heads

• They have multiple eyes

• Their eyes are on the sides of their heads

• They have a special lens in their eyes

Why do great white sharks roll their eyes back when attacking?

• To protect their eyes from damage

• To intimidate their prey

• To see better underwater

• To focus on their prey

What is the top speed a great white shark can reach when jumping out of the water?

• 15 miles per hour

• 45 miles per hour

• 35 miles per hour

• 25 miles per hour

Which shark species is smaller than a human hand?

• Dwarf lanternshark

• Hammerhead shark

• Tiger shark

• Great white shark

How do great white sharks breathe while swimming?

• By opening their mouths wide

• Through their skin

• By using a swim bladder

• By RAM ventilation

What material makes up the skeleton of sharks?

• Cartilage

• Silicon

• Bone

• Calcium

How long have sharks been swimming in the oceans?

• 200 million years

• 300 million years

• 450 million years

• 600 million years

What happens to a shark's body when it dies in saltwater?

• It floats to the surface

• Only the teeth remain

• It dissolves completely

• It turns into stone