Crayfish Behavior and Biology

Ranger Olivia introduces crayfish, discussing their various names and classification as crustaceans. The video covers crayfish anatomy, including their exoskeleton, pincers, and legs, and explains their habitats and unique breathing adaptations. Crayfish are omnivores and nocturnal, feeding on various small creatures. Tips for hunting and handling crayfish safely are provided, along with a reminder to return them to nature. The video concludes with resources for further learning.

What group of animals do crayfish belong to?

• Reptiles

• Mollusks

• Crustaceans

• Amphibians

What is the purpose of a crayfish's exoskeleton?

• To store food

• To protect their soft body parts

• To help them swim faster

• To attract mates

How do crayfish use their pincers?

• To swim faster

• To dig burrows

• To communicate with other crayfish

• To ward off predators and tear food

What unique feature allows crayfish to see in all directions?

• Their reflective scales

• Their eyes on short stems

• Their ability to turn their heads

• Their long antennae

How do crayfish breathe on land?

• By using lungs

• By absorbing moisture from the air with their gills

• Through their skin

• By holding their breath

What is the primary diet of crayfish?

• Only small fish

• Only plants

• A variety of snails, insect larvae, and dead matter

• Only algae

When are crayfish most active?

• In the early morning

• At night

• In the afternoon

• During the day

What is a recommended method for catching crayfish?

• Using a fishing rod

• Throwing a rock to scare them

• Sneaking up and placing a net behind them

• Using a flashlight to blind them

Why is it important to return crayfish to their natural habitat after observing them?

• To avoid fines

• To ensure their survival and maintain ecological balance

• Because they are dangerous

• To prevent them from becoming pets

What is a safe way to pick up a crayfish?

• By their legs

• By their backs

• By their tails

• By their pincers