Shark Repellents and Behavior Quiz

What have researchers been trying to develop for over sixty years?

• Shark food

• Shark repellent

• Shark attractant

• Survival gear

What did fishers claim sharks avoided?

• Magnetized water

• Stinky mixtures

• Shark necromones

• Shark fins

What did the Navy create in the 1940s to protect against sharks?

• Shark cages

• Shark repellents made from necromones

• Survival vests with a stinky mixture

• Magnets

What does the Moses sole secrete from its glands?

• A toxin that repels sharks

• Shark necromones

• Electromagnetic fields

• Liquid repellents

Why didn’t the toxin from the Moses sole work for commercial repellents?

• It was too expensive to produce

• It didn’t bother sharks enough

• People weren’t able to use it

• It wasn’t discovered in time

What did Eric Stroud discover by accident in 2004?

• Sharks avoid liquid necromones

• Sharks are deterred by magnets

• Sharks are sensitive to toxins

• Sharks avoid stinky mixtures

What do sharks use their electrical sensors for?

• To navigate using Earth’s magnetic field

• To swim faster

• To communicate with other sharks

• To avoid predators

How does a magnet’s field affect sharks?

• It disrupts their navigation

• It helps them find prey

• It makes them aggressive

• It doesn’t bother them

What is one method companies are using to repel sharks?

• Using fishhooks with necromones

• Exploding containers of liquid necromones underwater

• Electrifying the water

• Attracting sharks to different locations

What do people hope magnetized fishhooks will do?

• Attract sharks to safe areas

• Stop sharks from getting caught by accident

• Improve fishing efficiency

• Make sharks avoid necromones