On the muddy banks of rivers and wetlands, an unlikely hero—and sometimes villain—skitters beneath the surface: the crawfish.

Image via James St. John, Public domain, via Wikimedia Commons Cave crayfish represent one of nature’s most ... particularly fascinating is how it has developed a form of “farming” in complete ...

Get Instant Summarized Text (Gist) Fossilized jaw molars reveal that giant freshwater crayfish, up to 25 cm long, inhabited New Zealand 20 million years ago. These molars, unlike the rest of the ...

Australian freshwater blueclaw crayfish Bleckdraco CC BY-NC-SA 2.0 Giant freshwater crayfish, longer and bulkier than today’s species, roamed New Zealand 20 million years ago. They would have ...

WELLINGTON: Giant freshwater crayfish, up to 25cm long, once roamed New Zealand's ancient lakes around 20 million years ago, three times the size of today's native species, a new study has revealed.

WELLINGTON, April 18 (Xinhua) -- Giant freshwater crayfish, up to 25cm long, once roamed New Zealand's ancient lakes around 20 million years ago, three times the size of today's native species ...

White-clawed crayfish are on the International Union for Conservation of Nature's red list of threatened species that are considered endangered. The UK's only native freshwater crayfish ...

Increases in the production and use of pharmaceutical drugs–like antibiotics, antidepressants and pain relievers–are contributing to the contamination of Canada's freshwater resources.