Most people thinks that they need only water, but they too need a place to rest on, a stone or a floating peace of wood. Many people appear to have an instinctive dislike of spiders, yet such is the bizarre fascination of these creatures that they nevertheless exert unique attraction. Indeed, although tarantulas may not be at the top of everyone's favorite pet list, there is no doubt that they more and more are becoming highly popular as pets. There are over 30,000 species recognized around the world and tarantulas are the largest. Spiders are not insects like many people think.
Spiders possess eight legs compared with the six of the insects.
The animal that bears the generic name Tarantula is not even a spider, but a tailless whipscorpion that is only indirectly related to the spiders. The tarantula's body is confined in a rigid casing known as an exoskeleton. As the spider grows it must undergo sequential molts, gaining a progressively larger exoskeleton each time. The tarantula will also regain lost limbs in this process. Because of this exoskeleton the tarantula can't take high falls, the exoskeleton will 'crack open', and the tarantula dies.