Since they were first released as live bait in the mid-twentieth century, rusty crayfish have roamed lake bottoms in northern Wisconsin, gobbling native fish eggs, destroying aquatic plants, and generally wreaking havoc on ...
Ecology
Mar 28, 2019
0
56
A genome study has proven that all specimen of Marmorkrebs, or marbled crayfish, originate from a single female. About 30 years ago, the original clone evolved in an aquarium. Ever since, the female animals have been able ...
Ecology
Feb 5, 2018
0
136
Crayfish make surprisingly complex, cost-benefit calculations, finds a University of Maryland study, opening the door to a new line of research that may help unravel the cellular brain activity involved in human decisions.
Plants & Animals
Jun 15, 2010
3
0
Insects are so successful on the land because insect eggs are protected from desiccation. Thanks to an extraembryonic membrane in the egg, the serosa, insects could successfully switch from life in the water to life on land. ...
Plants & Animals
Jun 26, 2013
0
0
Antidepressants can help humans emerge from the darkness of depression. Expose crayfish to antidepressants, and they too become more outgoing—but that might not be such a positive thing for these freshwater crustaceans, ...
Ecology
Jun 15, 2021
2
22
The U.S. Fish and Wildlife Service has proposed listing two kinds of Missouri crayfish as threatened under the Endangered Species Act, as well as identifying "critical habitat" for their survival and recovery in the state's ...
Ecology
Sep 21, 2020
0
15
Animals can simplify the brain control of their limb movements by moving a joint with just one muscle that operates against a spring made of the almost perfect elastic substance called resilin. This principle is analysed ...
Cell & Microbiology
May 29, 2009
0
0
The University of Nevada, Reno's Sudeep Chandra, a leading Lake Tahoe scientist who has studied invasive species and limnology at the lake for 20 years, said issuing permits for commercial harvesting of crayfish at Lake Tahoe ...
Environment
Jun 4, 2012
0
1
What shapes a river? People typically imagine large-scale processes such as storms and floods or human modifications like dams or fortified banks. But the shape of our rivers today is also a result of the cumulative impact ...
Plants & Animals
Oct 16, 2019
0
6
Few studies have investigated how prior social experience affects sensitivity to alcohol, but now a study from the University of Maryland shows that sociable crayfish are more sensitive than loners and suggests that similar ...
Plants & Animals
Apr 19, 2017
0
15
