| 11. | The first electrical synapse was discovered in a crayfish nervous system.
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| 12. | He usually carries bear traps & large crayfish on his person.
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| 13. | Crayfish can move backward much faster than they can move forward.
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| 14. | Crayfish or Cape lobster is plentiful although fishing is strictly regulated.
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| 15. | The River Windrush supports species including trout, chub and crayfish.
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| 16. | No reports are available concerning bats, fishes, and crayfish.
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| 17. | They inhabit burrows and are aggressive, apparently outcompeting native crayfish.
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| 18. | It is an omnivore and is eaten by crayfish and fish.
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| 19. | The main economic activity is the packaging and export of crayfish.
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| 20. | Benthic organisms such as crayfish and other fish feed on eggs.
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