This is an often asked, and usually misunderstood topic, How can i sex my tarantula? Well, there are different ways, here we'll learn the less invasive and most precise way to do it.
After a Tarantula molts its old exoskeleton, grab it, hopefully the part we need, the abdomen, is still intact.
•First of all, spread the molt, this is the usual position you will have to place it like:

•You'll have to go look in this part of the abdomen, between the first pair of lungs:

•Specifically, you'll have to look here. This is the place where the Spermatheca will be, the form of the Spermatheca depends on the species and the bigger the animal, the easier it is to spot. It essentially is a flap, if you don't see nothing at all, you have a boy ;)

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