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Rattlesnake fangs are connected by venom ducts to large venom glands near the outer edge of the upper jaw, towards the rear of the head. When the rattlesnake bites, muscles on the sides of the venom glands contract to squeeze the venom through the ducts and into the fangs. When the fangs are not in use, they remain folded against the palate ...
Snake venom is a highly toxic saliva [1] containing zootoxins that facilitates in the immobilization and digestion of prey. This also provides defense against threats.
The black-tailed rattlesnake is found in the southwestern United States in Arizona, New Mexico and west and central Texas, and Mexico as far south as Oaxaca, as well as the Gulf of California on San Estéban and Tiburón Islands. Its distribution reaches a maximum elevation of 2930 m, although it has been recorded at as high as 6900 feet at the ...
Common names: banded rock rattlesnake, [2] green rattlesnake, green rock rattlesnake, [3] more. Crotalus lepidus klauberi is a venomous pitviper subspecies [4] native to the southwestern United States and adjacent northern Mexico.
Euphorbia albomarginata (formerly Chamaesyce albomarginata), whitemargin sandmat or rattlesnake weed, is a small low-growing perennial, in the spurge family (Euphorbia, Euphorbiaceae) native to desert, chaparral, and grassland habitats of southwestern North America, from southern and central California to Northern Mexico and Louisiana.
Crotalus scutulatus is known commonly as the Mohave Rattlesnake. [3] [4] Other common English names include Mojave Rattlesnake [5] [6] and, referring specifically to the nominate (northern) subspecies: Northern Mohave Rattlesnake [4] and Mojave Green Rattlesnake, [7] [5] the latter name commonly shortened to the more colloquial “Mojave green”. [8]
The comparatively low venom yield (6.4–11 mg dried venom) and short 4.0 mm (0.40 cm) to 4.6 mm (0.46 cm) fangs of the tiger rattlesnake possibly prevent severe envenoming in adult humans. However, the clinical picture could be much more serious if the person bitten was a child or a slight build individual.
The largest recorded specimen was 3.65 m (almost 12 feet) long, making the species the largest of all vipers and the longest venomous snake in the Western Hemisphere. [5] Lachesis muta is the third longest venomous snake in the world, exceeded in length only by the king cobra and the black mamba.