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.
I think the reason they are so ugly is the same reason kittens and puppies are so cute. A kitten, for example, is a miniature cat. They look just like a cat, only smaller. Everything is there: tiny whiskers, fur. Human babies are gross. Their heads are large and out of proportion to their bodies.