Multicellular organisms must evolve mechanisms to suppress ... tightly regulated stem cells confined to a small niche (Fig. 1). Of particular evolutionary interest is that normal crypt function ...

Here they must find a niche or they will die. In finding a niche, organism "invaders" like these sometimes displace organisms that are already there as they compete for the same food or living space.

There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...

Across planet Earth, the animal world is full of species perfectly adapted for life in their specific niche. From polar bears ...

"The model also simulates organisms that don't just passively learn, but can actively reshape their environment—an ability called niche construction," says Lee, who is an ESPRIT Fellow of the ...