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Long vaunted as a quiet, elegant, ubiquitous species of Africa, recent studies indicate that the giraffe’s numbers have fallen significantly over the last few decades. Giraffe populations have declined from about 140,000 in the late 1990s to fewer than 85,000 today, largely due to habitat loss and poaching. Scientists call this ominous decline a silent extinction. Raising awareness about the plight of the giraffe and supporting their conservation is giving them a boost on this World Giraffe Day…and every day!
While it may seem that all giraffes look alike, there’s actually significant differences to their coat patterns. Above, from left to right: Masai, reticulated, and Uganda giraffe.[/caption] The study tracked seven genetic sequences using nuclear DNA from skin biopsies and mitochondrial DNA of 190 giraffes. Giraffa camelopardalis is now joined by the southern giraffe G. giraffe; the Masai giraffe G. tippelskirchi; the reticulated giraffe G. reticulata, and the northern giraffe G. camelopardalis. The Nubian giraffe G. camelopardalis camelopardalis is the lone subspecies of the northern giraffe.
Tower of Power
Giraffes are the tallest mammals in the world, due to their elongated neck and extended legs, looming 14 to 19 feet tall. They weigh 1,750 to 2,800 pounds—as much as a midsize sedan! Their unmatched height gives them an advantage—they can browse on leaves that other animals cannot reach, using their sticky, 18-inch-long tongue. A group of giraffes is aptly called a tower.Fleet Feet
Graceful runners, these animals can reach 35 miles per hour over short distances. A leisurely jaunt carries them 10 miles per hour. Youngsters hit the ground running (almost) and can follow their mother within hours of being born.Thirsty?
It is dangerous and awkward for giraffes to slake their thirst at a water hole. They must splay their front legs wide to allow their head to drop down to the water, leaving them vulnerable to predators. Fortunately, they only need to drink this way once every several days, as the leaves they consume contain moisture.Spot the Difference
Once thought to be a single species split into nine subspecies, an important giraffe secret was revealed in 2016: genetics work revealed that there are actually four distinct lineages of giraffe that do not interbreed in the wild. [caption id="attachment_122244" align="aligncenter" width="2400"] DIFFERENT COATWhile it may seem that all giraffes look alike, there’s actually significant differences to their coat patterns. Above, from left to right: Masai, reticulated, and Uganda giraffe.[/caption] The study tracked seven genetic sequences using nuclear DNA from skin biopsies and mitochondrial DNA of 190 giraffes. Giraffa camelopardalis is now joined by the southern giraffe G. giraffe; the Masai giraffe G. tippelskirchi; the reticulated giraffe G. reticulata, and the northern giraffe G. camelopardalis. The Nubian giraffe G. camelopardalis camelopardalis is the lone subspecies of the northern giraffe.