The word Boa is the name for snakes in the family Boidae, which are capable of bearing live young; they are found mostly in America (North and South). The family Boidae also contains Pythons capable of laying eggs, along with some of the largest snakes on the planet, and some of the smallest ones. Snakes in the boa family contain two lungs instead of one, and the remainders of hind limbs; the primitive characteristics shown by Boa's are evidence of their similarities to lizards. Both of the two minuscule leg bones end with a tiny, spiky claw.
To catch their prey, Boa's strike with their large fangs and hurl their bodies into a crushing vice-like grip around the victim. Then the Boa squeezes its prey, so that it is unable to breath, and eventually it suffocates. Like many types of snakes, Boas tend to swallow their prey whole. There are over 30 different Boa species found from South America to Mexico, with the greatest variety existing in the tropic regions. Boas mainly come under three different groups of Boa: Terrestrial, Burrowing (In sandy places such as Deserts) and Aboreal (Tree Snakes).
Some Boas are exquisitely coloured, such as the Emerald Tree Boa. By far, the best known Boa is the Boa Constrictor, whose habitat is a number of terrestrial habitats from Central Argentina to South Mexico. It has brown markings along its back, commonly a diamond shape. It is one of the longest and thickest of all snakes.
These snakes are not a good choice of pet for those looking for a beginner's exotic/reptilian pet. They need a very large amount of space and regular feeding, as well as lots of care and looking after. Make sure their diet is supplemented well and that you have a good insurance provider in case anything goes wrong, as always.
Here is a site I recommend: http://www.pet-insurance4you.co.uk/exotic-pet-insurance/
You also have to be careful of Snakes such as Boa's and Pythons, because they tend to develop harmful diseases such as Metabolic Bone Disease, which is very common in all reptiles. Make sure you provide at least 8 hours of UV light and supplement their diet regularly. Here is some more information on MBD:- http://exoticpets.about.com/cs/reptilesgeneral/a/metabolicbd.htm
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