Allegra and Itching - from FDA reports. Summary. Itching is found among people who take Allegra, especially for people who are female, 60+ old , have been taking the drug for < 1 month, also take medication Singulair, and have Hypersensitivity. This review analyzes which people have Itching with Allegra.
Rattlesnake Biology. Rattlesnake Biology. Rattlesnakes are usually identified by their warning rattle (a hiss or buzz) made by the rattles at the tip of their tails. A rattlesnake is born with a button, or rattler, and acquires a new rattle section each time it molts. Rattlesnakes also are distinguished by having rather flattened, triangular heads.
Scientists have identified 36 rattlesnake species. Rattlesnakes live only in North and South America. 13 species live in Arizona, more than any other state. Rattlesnakes use the loreal pit, a heat-sensing organ between the nostril and eye to locte prey and potential predators. These snakes have glands that make venom, much like human saliva glands make saliva.