These animals had been some of “the first freshwater crayfish” from New Guinea to be exported as aquarium pets over 21 years ago. Ever since, the hazy blue and purple crayfish have become ...

Biologists are monitoring an Australian crayfish that surprisingly showed up in Texas, fearing it could threaten local ...

The genetic analysis revealed that these were a new species: the dusty crayfish. A blue-form adult female dusty crayfish (Figure a). A purple-form adult male (Figure b). CREDIT: Jiří Patoka.