Description Tarantulas are among the largest spiders in the world. Tarantulas are among the largest spiders in the world. In contrast to many other spiders, they do not spin a web, but lay in wait for their prey â especially frogs, mice and birds. People don't have to be afraid of them. Tarantulas may have a strong bite, but they are good-natured, and their venom is weaker than that of bees.PRODUCT DETAILS:Dimensions 3.15 x 2.76 x 0.79 inch (W x D x H) Age Recommendation 3-8 years