Monday, 31 March 2014

American Alligator

The American alligator (Alligator mississippiensis), sometimes referred to colloquially as a gator or common alligator, is a large crocodilian reptile endemic to the southeastern United States. It is one of two living species in the genus Alligator within the family Alligatoridae; it is larger than the other extant alligator species, the Chinese alligator. Adult male American alligators measure 3.4 to 4.6 m (11 to 15 ft) in length, and can weigh 453 kg (999 lb). Females are smaller, measuring around 3 m (9.8 ft).

American Alligator - Photo source link
American Alligator - Photo source link
American Alligator - Photo source link
American Alligator - Photo source link
American Alligator - Photo source link
American Alligator - Photo source link

Wednesday, 26 February 2014

Mexican Beaded Lizard

The beaded lizard has one close living relative, the Gila monster (H. suspectum), as well as many extinct relatives in the Helodermatidae, whose evolutionary history may be traced back to the Cretaceous period. The genus Heloderma has existed since the Miocene, when H. texana ranged over most of North America. Because the helodermatids have remained relatively unchanged morphologically, they are occasionally regarded as living fossils.

 Mexican Beaded Lizard - Photo source link
 Mexican Beaded Lizard - Photo source link
 Mexican Beaded Lizard - Photo source link
 Mexican Beaded Lizard - Photo source link
 Mexican Beaded Lizard - Photo source link
 Mexican Beaded Lizard - Photo source link