Giraffe - Wikipedia.pdf

giraffe

1. 4/11/22, 11:33 AM Giraffe - Wikipedia
https://en.wikipedia.org/wiki/Giraffe 1/1
The International Union for Conservation of Nature (IUCN) currently recognises only one species of
giraffe with nine subspecies.
[1]
 During the 1900s, various taxonomies with two or three species were
proposed.
[21]
 A 2007 study on the genetics of giraffes using mitochondrial DNA suggested at least six
lineages could be recognised as species.
[20]
 A 2011 study using detailed analyses of the morphology of
giraffes, and application of the phylogenetic species concept, described eight species of living
giraffes.
[22]
 A 2016 study also concluded that living giraffes consist of multiple species. The
researchers suggested the existence of four species, which have not exchanged genetic information
between each other for 1 to 2 million years