A violation of the CITES treaty would be selling tiger skins.
Explanation:
The treaty CITES mainly focus on the prevention of animals and plants species extinction. It helps in preventing the loss of the animals and plants population. Most of the plants have medical benefits in them Hence, people started to trade these plant species for money. Animals and the skin of animals were also sold for monetary benefits.
This will lead to the extinction of these species. Hence, the population of these species will also be degraded. The trading of these specific animals and plants led to the danger of extinction level of them. Hence for the purpose of saving the flora and fauna, this aims in preventing the trading of the flora and fauna.They aim in preserving these resources.