ANSWERS: 3
  • Crawfish ( or Crayfish )are most active at night. They leave the protection of rocks or other cover to forage in the dark. They can even crawl up onto land next to water to go from pool to pool in search of food. The location of their gills under the carapace means that they stay moist for some time even when the crawfish is out of the water. This and the crawfish's ability to tolerate low oxygen levels allows them to venture from the water for short periods. http://www.naturenorth.com/fall/crayfish/cray2.htm can tell you more.
  • No. Typically they live in water. But on land they will tunnel down to the water table, piling up a mud chimney around their "well" to make a tower. It's not unusual for the "mud bug" to go dormant and stay in his "castle" for weeks or months.
  • Crewfish can survive for a few days out of water.

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