Two species of ancient humans walked beside each other 1.5 million years ago, fossil footprints have revealed. Fossilised ...

More than a million years ago, on a hot savanna teeming with wildlife near the shore of what would someday become Lake ...

In some cases, the species are entirely dependent on each other (obligate mutualism) and in others, they derive benefits from their relationship but could survive without each other (facultative ...

Despite what we see today in human politics worldwide—that being social and cooperative seems to be out of fashion—there is ...

Despite only weighing as much as a AA battery, these birds have charisma to spare and are amazing avian acrobats. Nearly 60 ...

Dominant species are the most abundant species in a community, exerting a strong influence over the occurrence and distribution of other species. In contrast, keystone species have effects on ...

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 ...

All species also belong to larger groups. For example, chimps belong to a family called the hominids, which also includes humans. The hominid family in turn belongs to a larger class, called mammals.

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 ...

Keystone species examples come in many shapes and sizes. Some are big (grizzly bears), some are small (starfish), and some are vegans (elephants). Learn more about keystone species and the ...