Fish also build nests. Among sticklebacks this is done by the male, requiring so many of his resources that he cannot function normally while at work: he loses his ability to produce urine normally.

Researchers at the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) have shown that three-spined sticklebacks in the North Sea pass on information concerning their living ...

Certain types of tapeworm make sticklebacks behave carelessly and thus become easier prey for birds. A team of biologists have now demonstrated for the first time that the tapeworm not only influences ...

They're small in size but big in mind: sticklebacks display a remarkably human-like intelligence when it comes to searching for food, according to scientists in the UK. By comparing their own ...

Earth is home to a remarkable variety of organisms, which come in all shapes and sizes. Many species have developed special traits to ensure their survival and reproduction in a particular environment ...

Evolution is supposed to inch forward over eons, but in the case of the little threespine stickleback fish, the process can go in relative warp-speed reverse, according to a study led by Dr. Katie ...

Of all the big questions in evolutionary biology, the problem of what makes organisms unique would probably rank among the top five. If only it were possible, the most direct approach to answering ...

Threespine sticklebacks are tiny fish with a big impact. Experts in adapting to new environments, they help biologists understand the evolutionary process of adaptation to environmental changes. After ...

Scientists have been watching the evolution of new species of fish right before their eyes. This is the first example of being able to see early stages of a rare kind of speciation, where two separate ...

In tomorrow’s New York Times I have an article about the origin of species–or rather, blocking the origin of species. The evolution of a new species can be a drawn out process, taking thousands or ...

Tapeworm increases tendency of fish to “take risks” / Evolutionary biologists publish new study Parasites which are passed on via the food chain often influence the behaviour of their host to their ...