Sharks

Front

What is the function of the Nictitating Membrane in sharks?

Back

The Nictitating Membrane protects the shark's eyes while feeding and does not allow the shark to sleep.

Front

Do sharks have a swim bladder?

Back

No, sharks lack a swim bladder, which is a gas-filled organ that helps fish maintain buoyancy.

Front

How many teeth can a shark have in its lifetime?

Back

A shark can have approximately 20,000 teeth in its lifetime.

Front

What are the black pores on a shark's snout used for?

Back

The black pores are used for electroreception, allowing sharks to detect electrical fields in the water.

Front

Is it true that more people have been killed by lightning strikes than by shark attacks?

Back

Yes, more people have been killed by lightning strikes than by shark attacks.

Front

What is the primary diet of most sharks?

Back

Most sharks are carnivorous and primarily eat fish, squid, and marine mammals.

Front

How do sharks maintain their buoyancy in water?

Back

Sharks maintain buoyancy through their large livers filled with oil and by swimming continuously.

Front

What is the role of the ampullae of Lorenzini in sharks?

Back

The ampullae of Lorenzini are specialized electroreceptors that help sharks detect the electric fields produced by prey.

Front

What is the difference between a shark and a fish?

Back

Sharks are a type of fish known as cartilaginous fish, which means their skeletons are made of cartilage instead of bone.

Front

How do sharks reproduce?

Back

Sharks can reproduce through oviparity (laying eggs), viviparity (live birth), or ovoviviparity (eggs hatch inside the mother).