The horned owl is an American predatory nocturnal bird and is considered an important element in the structure and function of ecosystems where it regulates ...

Habitat: It is probably the best known of all ducks. Its distribution extends throughout the northern hemisphere. This migratory bird also frequents Central America and ...

Medium-sized big-headed hawk. Diurnal migratory raptor species from North America can be found in the desert of Sonora, Mexico, although some specimens migrate to the ...

Adult males have an oxide-red body, a blue beak, and a white face with a black top head. Adult females have a greyish-brown body, blackish ...

They are beefy birds that require a lot of effort to fly; they pedal through the water with their legs before rising. In the face ...

The antelope hare is a of North American species. The male and female antelope hares are identical in appearance. The antelope hare has a white ...

The coyote (Canis latrans, meaning “howling dog”) is a species of carnivorous mammal found only in the Americas, from Canada to Colombia. They are usually ...

The desert kangaroo rat (Dipodomys deserti) is a rodent found in desert areas of southwestern North America. It is one of the large kangaroo rats, ...

The pocket mouse, found in the deserts of the southwestern United States and Mexico, is medium-sized (~18 cm long, ~12-18 g in weight) and has ...

It is a species of squirrel from North America, native to northwestern Mexico. It is easy to detect on rocky slopes in arid canyons and ...

The California sea slug (Aplysia californica) is a gastropod mollusk of the family Aplysiidae. It and all species of this genus are commonly referred to ...

The Mexican fiddler crab, is a species of crab that owes its common name to its common name to its chelae, pincers or “pincers”, which ...

They are medium-sized, heavy-bodied snakes. They generally measure from 45 cm to 90 cm. The longest known are around 130 cm. The background color of ...

It is a moderately sized lizard; males have a length of 6.7 – 9.9 cm and females 6.7 to 8.7 cm. This species is adapted ...

  It is a viper that reaches the 50 cm to 80 cm of total length, with some records of specimens reaching up to 82.4 ...

  They are thin-bodied snakes with small heads and large eyes with round pupils. They vary greatly in color, but most reflect a camouflage appropriate ...