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Male O. v. nelsoni with antlers in velvet. The white-tailed deer (Odocoileus virginianus), also known commonly as the whitetail and the Virginia deer, is a medium-sized species of deer native to North America, Central America, and South America as far south as Peru and Bolivia, where it predominately inhabits high mountain terrains of the Andes. [3]
Deer grow antlers anew each spring, often at the rate of an inch per day. Now, scientists want to take the cells that power deer antler growth and figure out how to give that same ability to humans.
Antler, a modified form of bone, grows out of the skull bones of certain species of animals, such as deer, and is typically shed once a year.It consists of a thick layer of compact bone, an inner section of spongy bone, and internal blood vessels that are fewer in number and more irregular than the ones present in bone.
As a result of their fast growth rate, antlers are considered a handicap since there is an immense nutritional demand on deer to re-grow antlers annually, and thus can be honest signals of metabolic efficiency and food gathering capability. [12] Increasing size of antlers year on year in different European game species, 1891 illustration
The antlers are usually shed in March or April, and begin regrowing in May, when the bony growth is nourished by blood vessels and covered by furry-looking "velvet." Antler growth ceases each year by August, when the velvet dries up and bulls begin to scrape it off by rubbing against trees, in preparation for the autumn mating season or rut.
The Pennsylvania Game Commission reports hunters got 430,010 deer in 2023-24 hunting seasons. Here's how the numbers break down. Annual buck harvest numbers up, but antlerless deer remain flat
Based on this and patterns seen in modern deer, last year's antlers in Irish elk bucks were potentially shed in early March, peak antler growth in early June, completion by mid-July, shedding velvet (a layer of blood vessels on the antlers in-use while growing them) by late July, and the height of rut falling on the second week of August. Geist ...
Roe deer in a grassland area Young roe deer Roe deer antler Moulting roe buck with freshly rubbed antlers The roe deer is a relatively small deer, with a body length of 95–135 cm (3 ft 1 in – 4 ft 5 in) throughout its range, and a shoulder height of 63–67 cm (2 ft 1 in – 2 ft 2 in), and a weight of 15–35 kg (35–75 lb). [ 30 ]