Flora and Fauna
- 821
- Arabian Horned Viper: Cerastes gasperettii
- Photographs, videos and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.
- 822
- Aruba Island Rattlesnake: Crotalus unicolor
- Photographs and information from ARKive on this species found only on a single island located off the coast of Venezuela.
- 823
- Cottonmouth Snakes
- Provides information about these snakes with emphasis on their diet, bites and life-cycle. Includes pictures and videos.
- 824
- Crotalus atrox: Western Diamond-backed Rattlesnake
- Photographs of this species and its habitat, short videos, sound clip, description, natural history and taxonomy.
- 825
- Crotalus cerastes cerastes: Mohave Desert Sidewinder
- Many photographs, description, natural history and taxonomy.
- 826
- Crotalus cerastes laterorepens: Colorado Desert Sidewinder
- Photographs of this species and its habitat, description, natural history and taxonomy.
- 827
- Crotalus horridus: The Timber Rattlesnake
- Student project with classification, habitat, adaptation, nutrition, reproduction and interactions with other species.
- 828
- Crotalus mitchellii pyrrhus: Southwestern Speckled Rattlesnake
- Several photographs, short video, sound clip, description, natural history and taxonomy.
- 829
- Crotalus oreganus helleri: Southern Pacific Rattlesnake
- Many photographs, sound clip, description, natural history and taxonomy.
- 830
- Crotalus oreganus lutosus: Great Basin Rattlesnake
- Many photographs of this snake and its habitat, its description, natural history and taxonomy.
- 831
- Crotalus oreganus oreganus: Northern Pacific Rattlesnake
- Photographs of this species and its habitat, several short videos, description, natural history and taxonomy.
- 832
- Crotalus ruber: Red Diamond Rattlesnake
- Photographs of this species and its habitat, short videos, sound clip, description, natural history and taxonomy.
- 833
- Crotalus scutulatus scutulatus: Northern Mohave Rattlesnake
- Many photographs, description, natural history and taxonomy.
- 834
- Crotalus stephensi: Panamint Rattlesnake
- Photographs of this species and its habitat, description, natural history and taxonomy.
- 835
- Eastern Diamond-backed Rattlesnake: Crotalus adamanteus
- Photographs, videos and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.
- 836
- Eastern Massasauga Rattlesnake: Sistrurus catenatus catenatus
- Student project including classification, habitat, adaptation, nutrition, reproduction and interactions with other species.
- 837
- Many-horned Adder: Bitis cornuta
- Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.
- 838
- Mexican Cantil: Agkistrodon bilineatus
- Photographs and information from ARKive including classification, status, description, range, habitat, biology, threats and conservation.