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.

They’re a plant species known in the US as the Russian thistle (Salsola tragus), and begin their life cycle rooted into the ground. It looks sort of like a prickly green bush. The plant becomes ...

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 ...

Oct. 16, 2024 — From Tasmania to Madagascar to New Guinea, islands make up just over five per cent of Earth's land yet are home to 31 per cent of the world's plant species. A new study shows ...

In nature, species will sometimes form unexpectedly close bonds and work to their mutual benefit. Symbiotic relationships are the close associations formed between pairs of species. They come in a ...

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 ...

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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 ...

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 ...

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.

The extinction of hundreds of bird species caused by humans over the last 130,000 years has led to substantial reductions in avian functional diversity—a measure of the range of different roles ...