Lower Risk

Spectacled Caimans are common, meat-eating reptiles that spend most of their lives in the water. They swim very well, mainly using their tails to propel themselves through the water, and also using their webbed feet. Spectacled Caimans are nocturnal (most active in the evening) and has the widest distribution of any species in the Alligator family.

While inhabiting arctic tundra and northern boreal forests, this species ia among the most migratory of all animals. They feed on lichens, mushrooms, grasses, horsetails and willow. Reindeer are great swimmers. They also can run up to 50mph (80.5 km/h). They have the spongy foot pads, which provide traction on summer tundra. In the winter pads harden and become covered with tufts of hair, to prevent slipping. Their main predators are wolves, bears, people and wolverines. Reindeer live up to 15 years in the wild and 20 years in captivity.

Black bears are classified as carnivores, but over 75% of their diet is vegetation which includes grasses, herbs, fruits, berries, honey, nuts and seeds; and a small percentage of the diet is insects, fish, small mammals and carrion. Black bears communicate with body and facial expressions, sounds, touch and through scent marking.

They average life in the wild is up to 20 years and have lived to be over 30 years in captivity.

These sheep live in alpine meadows near rocky cliffs. Their hooves are hard on the outside and soft on the inside, which helps them climb and jump. They use avalanche chutes and talus slopes to escape from predators, such as wolves, mountain lions and bears. Bighorn sheep feed on grasses, leaves, herbs, twigs and shoots. In the wild they live around 12 years, while in captivity the life span extends up to 20 years.

Plain's Bison live mainly in prairies. They feed on prairie grasses, lichen and mosses. Despite their large size, bison are able to run at speeds of 37 mph (60 km/h). They also can swim rivers over 0.6 miles (1 km) wide. Bison live 20 years in the wild and 40 years in captivity. Their main predators are humans.