The Washington Convention
Implemented in 1973, it restricts or forbids international trade in of animal and plant species that are threatened with extinction. It is now in force in 175 countries, including France.
For example, the Convention forbids international commerce of some animal species (gorillas, elephants, deep sea turtles) and carefully controls regulates trade in of others (chimpanzees, parakeets, boa constrictors).
For those animals that can be transported, you must obtain a CITES (Convention on International Trade of Endangered Species) permit.