One could use Mayr’s concept to treat them all as individual species. Most difficult of all are species that have no sex whatsoever. Take a lineage of microscopic marine animals known as ...

He explained that there’s more agreement than the swarm of species concepts might suggest. The concepts have in common their references to organisms in a population lineage, or line of descent.

The paper’s been cited a fair number of times. The original term I used was “a general lineage concept of species.” That was to refer to the fact that all the species definitions had this in common.

The classic textbook definition, known as the biological species concept, is a group of organisms that only ... and Denisovans hooked up with a distant lineage, not yet known from fossils, that may ...

Figure 1: A unifying species concept that consists of a metapopulation lineage over time. Notably, the only criterion for a species according to this concept is their evolutionary fate ...

For the first time ever, scientists have managed to determine the biological sex of an ancient human ancestor that lived in ...

My new concept recognises that boundaries between species do not necessarily exist ... relating to the spectrum of variation within a lineage between about 2.5 and 1.8 million years ago.

This video reveals all 40 species of wild cats, organized by lineage, revealing the fascinating evolutionary history of the Felidae family. Wildcats represent some of the most beautiful and diverse ...

Using the general lineage species concept, which defines species as groups of organisms that share a common ancestry and have evolved separately from other lineages, they concluded that the snail ...

By one definition, a species is a genetically distinct lineage. “If that’s your species concept then, no, it’s not true that there are more species discovered by this method than there ...

The discovery, if confirmed by research already underway, would mark the first time that an entirely new species of hominid ... provide a useful indicator of lineage, but say little about the ...