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Yet antlers are commonly retained through the winter and into the spring, [25] suggesting that they have another use. Wolves in Yellowstone National Park are 3.6 times more likely to attack individual male elk without antlers, or groups of elk in which at least one male is without antlers. [25]
The sexes can be distinguished from each other by the size and shape of their antlers. Male antlers grow more branching points and measure anywhere between 39 inches and 53 inches in beam length ...
When fully developed, antlers are dead bone without a horn or skin covering; they are borne only by adults (usually males, except for reindeer) and are shed and regrown each year. Rhinocerotidae: The "horns" of rhinoceroses are made of keratin, the same substance as fingernails, and grow continuously, but do not have a bone core.
Unlike other deer species, female reindeer grow antlers. Male antlers can grow to lengths of fifty-one inches, while female antlers are smaller, at twenty inches. So, where do reindeer live?
Female reindeer grow antlers that are significantly smaller than their male counterparts. Male reindeer grow antlers as long as 50 inches after multiple seasons of shedding. Females grow 20-inch ...
Examples of secondary sex characteristics in non-human animals include manes of male lions [4] and long feathers of male peafowl, the tusks of male narwhals, enlarged proboscises in male elephant seals and proboscis monkeys, the bright facial and rump coloration of male mandrills, horns in many goats and antelopes, [10] and the swollen upper ...
Antlers grow very quickly every year on the bulls. As the antlers grow, they are covered in thick velvet, filled with blood vessels and spongy in texture. The antler velvet of the barren-ground caribou and the boreal woodland caribou is dark chocolate brown. [126] The velvet that covers growing antlers is a highly vascularised skin.
However, both male and female reindeer grow antlers. There are rare cases in other deer species in which the females grow little antlers, but this is usually a result of abnormal hormone levels.