News tagged with crayfish

A cray-active solution for cancer research

Scientists at the German Cancer Research Center have discovered a new species which is helping them understand epigenetics: all individuals of the marbled crayfish examined so far have been female. They reproduce by parthenogenesis, ...

Nov 02, 2015
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Anxiety in invertebrates opens research avenues

Fr the first time, CNRS researchers and the Université de Bordeaux have produced and observed anxiety-like behavior in crayfish, which disappears when a dose of anxiolytic is injected. This work, published in Science on ...

Jun 23, 2014
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Crayfish

Crayfish, crawfish, or crawdads – members of the superfamilies Astacoidea and Parastacoidea – are freshwater crustaceans resembling small lobsters, to which they are related. They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom; they are also mostly found in brooks and streams where there is fresh water running, and which have shelter against predators. Most crayfish cannot tolerate polluted water, although some species such as the invasive Procambarus clarkii are more hardy. Crayfish feed on living and dead animals and plants.

In Australia, New Zealand and South Africa, the term crayfish or cray generally refers to a saltwater spiny lobster, of the genus Jasus that is indigenous to much of southern Oceania, while the freshwater species are usually called yabby or koura, from the indigenous Australian and Māori names for the animal respectively, or by other names specific to each species. An exception is the freshwater Murray crayfish, which belongs to the family Parastacidae and is found on Australia's Murray River.

The study of crayfish is called astacology.

This text uses material from Wikipedia, licensed under CC BY-SA

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