In addition to being unique, seahorses are also quite fragile and sensitive to environmental changes. Recently, seahorse populations have been on the decline around the planet due both to habitat destruction and over-fishing. This has led to the group being added to the CITES Convention on International Trade under Appendix II, meaning that their trade needs to be evaluated and assessed for sustainability. Thailand is actually one of the world’s top exporters of seahorses, sending out about 5 million individuals per year, mostly to Taiwan and China. There they are sold as food, medicine, and novelty items or souvenirs.