Watch an Eel Shock a Biologist in the Name of Science | National Geographic

How do electric eels typically stun their prey in the water?

• By biting them.

• By creating a diffuse charged field.

• By leaping out of the water.

• By releasing a venomous substance.

What special defense mechanism do electric eels use when they sense a threat above the water?

• They hide at the bottom of the water.

• They swim away quickly.

• They leap out of the water to deliver a direct shock.

• They change their skin color to camouflage.

In the experiment shown, why was the scientist's hand placed in a separate container of water?

• To keep the eel from swimming away.

• To isolate the hand and measure the electricity flowing through it.

• To make the water colder for the eel.

• To prevent the eel from biting the hand.

How strong is the electric shock from an eel, as measured in the experiment?

• About 10 milliamps.

• About 20 milliamps.

• About 40 milliamps.

• About 100 milliamps.