Genome-wide study confirms six tiger subspecies

Fewer than 4,000 free-ranging tigers remain in the wild. Efforts to protect these remaining tigers have also been stymied by uncertainty about whether they represent six, five or only two subspecies. Now, researchers who've ...

Wrens' calls reveal subtle differences between subspecies

Birds' songs and the ways they vary between places have been well studied—but what can the simpler vocalizations known as calls tell us about bird biology? A new study from The Auk: Ornithological Advances provides the ...

Genetic analysis uncovers four species of giraffe, not just one

Up until now, scientists had only recognized a single species of giraffe made up of several subspecies. But, according to the most inclusive genetic analysis of giraffe relationships to date, giraffes actually aren't one ...

Study suggests there are only two tiger subspecies

(Phys.org)—A team of researchers with affiliations to institutions in Germany, Denmark and the U.K. has concluded after extensive research, that there are really only two subspecies of tigers, as opposed to the nine that ...

A new species of hummingbird?

The Bahama Woodstar is a hummingbird found in the Bahamas, and comprises two subspecies. One of these, Calliphlox evelynae evelynae, is found throughout the islands of the Bahamas, and especially in the northern islands. ...

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