a body organ that holds urine before it exits the body; not all animals have bladders, and some animals can reabsorb liquid from the bladder
https://en.wikipedia.org/wiki/Urinary_bladder
Hardy Gilas
Karla Moeller
The desert is a tough place to live – food may be tough to find, rain only comes in certain seasons, and the temperatures can be hard to handle. How does one special lizard, the Gila monster, deal with these difficulties?