You are not asking us if it is okay to smuggle animals, are youmy question is if i buy tarantula can i bring it home with me to my country
Ok thank you for the infoWell in orfer for them to legally leave the USA you would need to find somebody with the proper license (and possibly other permits depending in species) to be able to export it out of the country. That of course assumes that the species is still legal to export. (all Sri Lankan pokies and Brazilian endemic species to name a few are NOT legal for us to export at all)
Now after you get the USA side figured out, i would assume that there is a proper legal procedure to bring them into your home country (Looks like Japan?). I cant help you there because i have no idea what laws and processes may be in place for that sort of thing outside of the USA.
Now JUST MAYBE if you can find a pair of people that were already planning to do a USA to Japan shipment, you could get them to include yours (if legally possible) for a small fee. Otherwise it would be quite expensive if you could even find people willing to do the process for you.