However, there’s no single definition of a species, meaning this vital concept in biology can be difficult to understand. Find out the different ways scientists have of describing what species are, ...

Grizzly bears, for example, are a subspecies of brown bear found in parts of North America. There are many different ...

Quite simply, species are kinds, or types, of organisms ... appears to include several slightly different kinds of chimpanzees. Each of these have been given the rank of sub-species.

Symbiotic relationships are when two animals of different species live in close ... that are positive for at least one of the species and one type that is negative. Parasitism is a negative ...

When studying the Asian hornets’ (Vespa velutina) gut contents, a team of researchers from the University of Exeter in the United Kingdom, they found evidence of 1,400 different species ...

Other important niche differences arise when species grow best different habitats, such as shallow or deep soils for plants, or in different types of years (wet years versus dry years ...