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.
Timber rattlers are the second largest venomous snake in Texas and third largest in the United States. Adult timber rattlesnakes reach a length of 36 to 40 inches (91 to 101 cm), and weigh 1.3 to 2 pounds (0.58 to 0.9 kg). They have a heavy, light yellow, gray or greenish-white body with a rust-colored strip along the length of their bac and a black tail is tipped with rattles.