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.
The genus Sistrurus comprises the three pygmy rattlesnake species of the United States and Mexico. The smallest, S. miliarius, of the SE United States, is under 18 in. (45 cm) long. Rattlesnakes are classified in the phylum Chordata, subphylum Vertebrata, class Reptilia, order Squamata, family Crotalidae.