Tigers were found exhibiting signs of malnutrition and obsessive behaviors during visits between 2005 and 2008, according to a report by the international organization Care for the Wild International, together with Born Free. The report also alleged that tigers supposedly being bred for conservation were exchanged with a tiger farm in Laos.
Thailand is a known hub for wildlife products, though it's been trying to crack down on the black market in recent years. In 2013, The New York Times reported that the country had seized 46,000 animals from traffickers over the previous two years. In addition to tigers, monkeys, pangolins and snakes were all coveted.
Now, conservationists hope the seizures result in "legal action and a deterrent punishment for offenders" - one step in tackling Thailand's massive illegal wildlife trade.
See this database of responsible travel options to find places to see Thailand's wildlife - without harming them.