Boa Constrictor

Boa constrictor

There are many Boas, and many snakes that are of the constricting variety, but today's animal is the Boa Constrictor. In fact, it is one of those rare living animals that have the exact same English-language common name as their scientific name. Yes, its official name is Boa constrictor!

These snakes are found in Central and South America, where they live in a variety of different habitats. While rainforests are the preferred hang-out spot, they can also be found in more open, semi-arid locations as well.

Boa Constrictors are large snakes, able to grow 13ft in length and weigh upwards of 60lbs! Their coloration varies by location, and there are several different subspecies that can be identified by their shades and patterns.

In general, Boa Constrictors are solitary-- only meeting up to mate. Fertilization happens internally and the females give birth to live young.

Did you know that one of the Boa Constrictor's favorite meals is Bat? They will snap the flying mammals right out of the air and kill them with constriction. Other common prey? Rodents, lizards, birds, and opossums. They locate their meals using heat pits in their heads, and can swallow animals much larger than their heads by unhinging their jaws.

Some subspecies and local Boa Constrictor populations are threatened. They are hunted for their skins and meat, and are taken for the exotic pet industry.

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IUCN Status : Not Listed
Location : South and Central America
Size : Length up to 13ft (4m)

Classification : Phylum : Chordata -- Class : Reptilia -- Order : Squamata
Family : Boidae -- Genus : Boa-- Species : B. constrictor
Image :  Belizian

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Inland Taipan

Oxyuranus microlepidotus

Meet the most venomous snake on the planet-- the Inland Taipan. This 6ft long Australian Snake has enough venom in its bite to kill 100 men!

Thankfully, very few bites on humans have ever occurred, as this snake lives in the dry interior of the Australian continent. Amazingly, the human death count is zero! The anti-venom for these bites has been very successful.

Rodents and other small mammals make up the Inland Taipan's diet. The snake waits silently for prey to come near, and then strikes very, very quickly, injecting the venom deep into the unlucky critter.

Inland Taipans are also interesting because they change color with the seasons. During the summer they are pale, but in the winter they are dark. The darker color helps them to absorb more heat during chillier months.

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IUCN Status : Not Listed
Location : Australia
Size : Length up to 6ft (1.8m)
Classification : Phylum : Chordata -- Class : Reptilia -- Order : Squamata
Family : Elapidae -- Genus : Oxyuranus -- Species : O. microlepidotus
Image : Bjoertvedt

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Madagascar Tree Boa

Sanzinia madagascarensis

Madagascar Tree Boas are snakes that are endemic to the African island that gives them their name. They actually come in two different color variations, based on their location. In the east, the snakes are grey and green, while in the western parts they are yellow and brown. Two colors, but the same species!

Though the word "tree" also appears in their common name, these snakes are only arboreal while they are hunting. They do so at night, seeking out prey int he pitch black thanks to hit sensitives pits in their mouths. Once they find and capture their prey, they constrict it with their powerful body muscles, leading to a restricted blood flow, heart failure, then death.

All Boas are constrictors, and are non venomous. Another trait that this Snake shares with it's family members? It gives birth to live young. After a six month pregnancy the female snakes give birth to around a dozen foot-long offspring.

Currently the Madagascar Tree Boas are listed as being of Least Concern, but habitat loss has been drastically reducing their historical habitat range. A great deal of their current range is now protected, and they are also being bred in captivity.

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IUCN Status : Least Concern
Location : Madagascar
Size : Length up to 5ft (1.5m)

Classification : Phylum : Chordata -- Class : Reptilia -- Order : Squamata
Family : Boidae -- Genus : Sanzinia-- Species : S. madagascariensis

Image : Axel Strauss

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