Northern giraffe are considered Vulnerable to extinction by the IUCN. In 2016, around 97,000 individuals from all subspecies were present in the wild. There are currently 5,195 northern giraffes. In the current IUCN taxonomic scheme there is only one species of giraffe with the name "G. camelopardalis" and nine subspecies. Three subspecies of northern giraffes are proposed. The giraffes have two horn-like protuberances known as ossicones on their foreheads. The northern giraffe's are longer and larger than that of the southern giraffes', though male northern giraffes have a third cylindrical ossicone in the center of the head just above the eyes which
Giraffe to reach the leaves of tall trees. This theory was eventually rejected, and scientists now believe the giraffe's neck arose through Darwinian natural selection—that ancestral giraffes with long necks thereby had a competitive feeding advantage (competing browsers hypothesis) that better enabled them to survive and reproduce to pass on their genes. The giraffe genome is around 2.9 billion base pairs in length compared to the 3.3 billion base pairs of the okapi. Of the proteins in giraffe and okapi genes, 19.4% are identical. The two species are equally distantly related to cattle, suggesting the giraffe's unique characteristics are not because