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The phylogenetic tree is a maximum-likelihood phylogram based on samples from 266 giraffes. Asterisks along branches correspond to node values of more than 90% bootstrap support. Stars at branch tips identify paraphyletic haplotypes found in Maasai and reticulated giraffes".
The Giraffidae are a family of ruminant artiodactyl mammals that share a recent common ancestor with deer and bovids.This family, once a diverse group spread throughout Eurasia and Africa, presently comprises only two extant genera, the giraffe (between one and eight, usually four, species of Giraffa, depending on taxonomic interpretation) and the okapi (the only known species of Okapia).
The gerenuk [a] (Litocranius walleri), also known as the giraffe gazelle, is a long-necked, medium-sized antelope found in parts of East Africa. The sole member of the genus Litocranius , the gerenuk was first described by the naturalist Victor Brooke in 1879.
The current IUCN taxonomic scheme lists one species of giraffe with the name G. camelopardalis and nine subspecies. [1] [7] A 2021 whole genome sequencing study suggests the northern giraffe as a separate species, and postulates the existence of three distinct subspecies, [8] and more recently, one extinct subspecies.
The southern giraffe (Giraffa giraffa), also known as two-horned giraffe, [1] is a species of giraffe native to Southern Africa. [2]
The idea of a tree of life arose from ancient notions of a ladder-like progression from lower into higher forms of life (such as in the Great Chain of Being).Early representations of "branching" phylogenetic trees include a "paleontological chart" showing the geological relationships among plants and animals in the book Elementary Geology, by Edward Hitchcock (first edition: 1840).
A decade after Singaporean filmmaker Anthony Chen parlayed his Cannes Camera d’Or win for “Ilo Ilo” into launching production house Giraffe Pictures, the company is expanding into ...
TreeFam (Tree families database) is a database of phylogenetic trees of animal genes.It aims at developing a curated resource that gives reliable information about ortholog and paralog assignments, and evolutionary history of various gene families.