This is known as the biological species concept. This species definition divides up animals, plants and other forms of life into groups based on their reproduction. For example, deer species such as ...

Quite simply, species are kinds, or types, of organisms. For example, humans all belong to one species (the scientific name of our species is Homo sapiens), and we differ from other species ...

A critically endangered new species of killifish sampled from an ancient forest in Kenya in 2017 and 2018 has been described ...

A well-studied example of a ring species is the salamander Ensatina escholtzii of the Pacific Coast region of the United States. In Southern California, naturalists have found what look like two ...

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When an individual directly alters the resource-attaining behavior of other individuals, the interaction is considered interference competition. For example, when a male gorilla prohibits other ...

Larger species face higher cancer risks but those that reached that size rapidly evolved mitigating mechanisms.

Caulerpa taxifolia, the "killer alga," is just one dramatic example of an accelerating phenomenon—the homogenization of the biosphere by species introduced to every continent and island.

Conservationists say delisting would harm wolf populations already threatened by climate change, loss of habitat and weak ...

Paleo-inspired robots reveal how extinct species moved, testing biomechanics to uncover the forces that shaped evolution.

The five kingdoms are: The binomial system is important because it allows scientists to accurately identify individual species. For example, the European robin is Erithacus rubecula. It is much ...