Twig snake. The twig snake is back-fanged, having its short fangs situated far back in the mouth. Its venom will subdue small prey such as rodents. Its is well camouflaged, resembling a small twig or branch in the trees that it inhabits.
Species: Twig snake, Thelotornis capensis oatesii
Image ID: 12816
The bisons massive head is its most characteristic feature. Its forehead bulges because of its convex-shaped frontal bone. Its shoulder hump, dwindling bowlike to the haunches, is supported by unusually long spinal vertebrae. Over powerful neck and shoulder muscles grows a great shaggy coat of curly brown fur, and over the head, like an immense hood, grows a shock of black hair. Its forequarters are higher and much heavier than its haunches. A mature bull stands about 6 1/2 feet (2 meters) at the shoulder and weighs more than 2,000 pounds (900 kilograms). The bisons horns are short and black. In the male they are thick at the base and taper abruptly to sharp points as they curve outward and upward; the females horns are more slender.
Species: American bison, Bison bison
Location: Yellowstone National Park, Wyoming
Image ID: 13134
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16620
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16625
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16626
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16627
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16628
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16652
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16653
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16654
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16655
Darwins Arch, a dramatic 50-foot tall natural lava arch, rises above the ocean a short distance offshore of Darwin Island.
Location: Darwin Island, Galapagos Islands, Ecuador
Image ID: 16656