A keystone in an arch's crown secures the other stones in place. Keystone species play the same role in many ecological communities by maintaining the structure and integrity of the community.

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 ...

Oct. 22, 2024 — Twenty-two new species of gall wasps have been identified and named, thanks to new research. The study nearly doubles the number of known species in ... Simulated Mission to Mars ...

How do new species form? Like most areas of Evolutionary Biology, research related to the formation of new species - 'speciation ' - is rich in historical and current debate. Here, we review both ...

Researchers have discovered a new species of "ghost shark" that exclusively lives in the deep waters surrounding Australia and New Zealand. The Australasian narrow-nosed spookfish has a long ...

Florida International University (FIU) scientists have finally identified a new species of hammerhead shark years after first collecting samples, but the shark's official discovery comes as its ...

Bulletin of Zoological Nomenclature, 61 (3) : 149 - 153. MAPSTONE G (2003) Redescriptions of two physonect siphonophores, Apolemia uvaria (Leseur, 18152) and Tottonia contorta Margulis, 1976, with ...

A species is a distinct group of organisms and the most basic unit used to measure life on Earth. However, there’s no single definition of a species, meaning this vital concept in biology can be ...

If we lived in an ordinary time—time here being understood in the long, unhurried sense of a geologic epoch—it would be nearly impossible to watch a species vanish. Such an event would occur ...

A species is a group of living organisms that are all broadly similar and can, at least in principle, breed with one another. This seems straightforward enough, but the word “species” is ...

Pimm, Stuart L. Russell, Gareth J. Gittleman, John L. and Brooks, Thomas M. 1995. The Future of Biodiversity. Science, Vol. 269, Issue. 5222, p. 347.

Wandering the pine rainforests and palmetto-choked riverbanks, they set about recording the number of dinosaur species they observe. They have all sorts of traits to consider when sorting their ...