Vasopressin (Antidiuretic Hormone). Vasopressin (arginine vasopressin, AVP; antidiuretic hormone, ADH) is a peptide hormone formed in the hypothalamus, then transported via axons to, and released from, the posterior pituitary into the blood. AVP has two principle sites of action: the kidney and blood vessels.
The Face That Launched 1,000 Awws. Like a tiny feline fashion model, this Persian kitten seems to know how to tilt her head just so. And wow, her eyes are stunning. It's no wonder that the Persian is one of the most popular cat breeds in the United States, according to the Cat Fanciers' Association.
Ragdolls are good pets. Ragdoll cats are a very popular breed of cats as they have a very beautiful appearance, and tend to be very loyal, trusting and affectionate. They are very friendly and docile so they get along with not only their owners and their favorite people, but can also be quite friendly to house guests.