Thanks for this link! It was a good article. I have copied a part of it here for those who may not want to read the whole thing. I had not heard this before & it could be important information to have:
Now a word about carting all your loot home. If it contains any
ivory, whalebone or fur, ask for a certificate stating that it's not from an endangered animal. It probably is best to mail it or ship it air cargo, especially if you are going home through Canada, which has rigid rules for endangered species and will confiscate items that are illegal in Canada even if they are legal in the U.S.