Yacare caiman


• Nome científico: Caiman yacare
• Classe: Reptile
• Hábitos alimentares: Carnivore
• Status de conservação: Least concern


Informações gerais:

Reptiles receive this name due to their type of locomotion (reptare = crawling, dragging), as their limbs are implanted in the body almost horizontally and the bodys support is impaired, forcing the animal to drag the ventral face during locomotion. They are mistakenly considered cold-blooded animals, but - in fact - they are ectothermic animals, that is, they depend on the heat of the external environment to regulate their body temperature. They have 72 to 82 teeth. The São Paulo Aquarium has in its breeding stock an alligator specimen from the albino wetland. Albinism is the inability to manufacture a pigment called melanin, which gives color to the skin and protects it from the suns ultraviolet radiation. Albino alligators are rarely found in their natural environment, as chicks become easy prey when they lose their ability to to be camouflaged between trunks and leaves, as do alligators with normal coloring. This albino alligator, called Bino, was a rare breed of a pair of wetland alligators that also lacked pigmentation on the scales. He was born on 01/04/2006 and arrived here when he was 8 months old and 44 cm long.

Longevidade:

60 years.

Dieta:

They feed mainly on fish and invertebrates. Unlike other species, their diet is more influenced by habitat than by their size. At the Aquarium they are fed beef, chicken and tilapia.

Tamanho:

2.5 to 3 m in length.

Distribuição geográfica:

They are distributed in Argentina, Bolivia, Brazil and Paraguay.

Conservação:

The threats of extinction of alligators are related to the predatory activity of man, through excessive and illegal hunting to remove leather and meat from these animals for consumption; and habitat destruction with water pollution and deforestation, thereby reducing both food and places to hide and set up nests.

Habitat:

They are found in rivers, corixos (small perennial river courses, of their own bed, which connect contiguous "bays"), artificial bays and lagoons on plains.

Reprodução:

They are oviparous animals and lay 22 to 35 eggs. To make the nest, they look for hard-to-reach places by digging a hole in the ground and using branches, sand and leaves to cover it. The puppies are born formed and emit a low sound that alerts the mother. Females protect nests and chicks. The sex of alligators is defined by the incubation temperature of the eggs. High temperatures produce male offspring and at lower temperatures females are born. The nesting period coincides with the floods (January to March). With an incubation period of 70 days.

Localização no Aquário de São Paulo:

Freshwater sector