There is a really dire problem with wildlife in foreign countries. Their plight is horrific when you think of all the circumstances under which they are being exploited.
Please ask your readers not to buy any live animal or bird, or any wildlife product such as fur, skin, ivory or tortoise shell. Discourage them from having their pictures taken with chimpanzees, monkeys or lion cubs. (It is a big racket at many of the world's beach resorts and one which involves gross cruelty.)
Please point out that international laws and treaties control movement of live animals and animal products and that returning tourists are likely to have their animals/animal products confiscated and may even face prosecution.