Size of the Tarantula
The tarantula is the largest documented spider. Among the more than 800 tarantula species, average body size ranges between two and six inches. However, the bodies and legs of these spiders are covered in dense hair, which causes them to appear much larger than they actually are. The largest tarantula species, Pseudotherathosa apophysis, can measure over one foot in length.
By virtue of its size, the tarantula is a formidable predator. Most tarantulas feed on insects and arthropods such as grasshoppers and grubs. Some species are also capable of consuming small birds and rats. These larger specimens are commonly referred to as bird-eating spiders. In confronting enemies, tarantulas rear up to display their oversized mandibles in warning.
Scientific Name for Tarantulas
Life Expectancy of a Tarantula