The roles of the pituitary gland and hypothalamus, which control thyroid hormone levels via secretion of TSH and TRH, respectively, have been discussed elsewhere. A fourth class of hypothyroidism is congenital...implying a defect at birth that affects thyroid hormone synthesis, transport to tissues or iodine metabolism.
exists and is an alternate of . It depends on which snakes your referring to, cobras, pythons, boa constrictors, rattlesnakes, and vipers all move at a rate of 3-7 mph. But the Black Mamba can move at 20 kmph or 8 mph, which in the snake world is super fast.
According to Vandeventer, the average female Eastern diamondback rattlesnake is about 4 1/2 feet long and males average 5 feet or so. Specimens over 6 feet are considered rare and Vandeventer said the largest documented Eastern diamondback he knows of was 7 feet, three inches long.