Biology
What type of animal is a crayfish?
Freshwater Crustacean
Where do crayfish typically live?
Freshwater rivers, streams, and lakes
at night (nocturnal)
What is the outer skeleton of a crayfish called?
Exoskeleton or carapace
True or False: Crayfish can regenerate lost limbs?
True
How many legs does a crayfish have?
Ten
What type of water do crayfish avoid?
What do crayfish mainly eat?
Plants, small fish, and detritus (dead things!)
What are the large claws of a crayfish called?
Chelipeds or Chellae
What is a baby crayfish called?
Juvenile or larvae
How long do crayfish live?
3-6 years
How do crayfish protect themselves in their habitat
By burrowing or hiding under rocks
Are crayfish scavengers?
Yes! They are omnivores AND scavengers
How many antennae do crayfish have?
Two pairs (four total)
What color are most crayfish naturally?
Brown or greenish
Crayfish are closely related to which marine animals?
Lobsters and shrimp
Can crayfish survive out of water?
Yes, for short periods of time if kept moist
Do crayfish live alone or in groups?
Alone
What part of the crayfish helps it sense its environment
Antennae and eyes
True or False: Crayfish help increase water quality
True
What is molting in crayfish?
Shedding their exoskeleton to grow
What role do crayfish play in their ecosystem?
Predator and prey, provide balance and stability
What is a common behavior crayfish show when threatened
Tail flip to quickly swim backward
What is the function of swimmerets on a crayfish?
Help in swimming and carrying eggs
Name a country known for crayfish festivals
Sweden