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Mongolian spot is a congenital developmental condition—that is, one existing from birth—exclusively involving the skin.The blue colour is caused by melanocytes, melanin-containing cells, that are usually located in the surface of the skin (the epidermis), but are in the deeper region (the dermis) in the location of the spot. [6]
The pigment-producing cells that contribute to the yellow spots of some sub-species are called xanthophores. [30] It appears that the fully-black phenotypes do not ever develop these xanthophores. [31] Alpine salamanders produce a toxin from their skin, and both fully melanistic, black salamanders and spotted individuals produce the compound. [32]
Thus a piebald black and white dog is a black dog with white spots. The animal's skin under the white background is not pigmented. Location of the unpigmented spots is dependent on the migration of melanoblasts (primordial pigment cells) from the neural crest to paired bilateral locations in the skin of the early embryo. The resulting pattern ...
Skin tags have also been associated with pregnancy and certain chronic conditions, including: insulin resistance, pre-diabetes, diabetes and metabolic syndrome, adds Shastry. Lastly, because there ...
White-tailed deer normally drop their fawns from the end of May through the first part of June. Now that these fawns are 2 to 4 weeks old, they are moving around quite well, and many people have ...
Whitetail fawns usually hit the ground in May here in the Northeast and the Midwest, but depending on the timing of the rut, or peak breeding time in the previous fall, we observe them either ...
Fawns open their preorbital glands as a signal that they are hungry, and close the gland after feeding, when they are no longer hungry. [ 11 ] The adult Indian muntjac ( Muntiacus muntjac ) is a solitary animal, other than during the rut (mating season) and for the first six months after giving birth.
Fawns lose their spots during the first summer and weigh from 20 to 35 kg (44 to 77 lb) by the first winter. Male fawns tend to be slightly larger and heavier than females. For the first four weeks, fawns are hidden in vegetation by their mothers, who nurse them four to five times a day.