Given that dolphins and the other protected species are migratory, successful conservation will require worldwide cooperation of the 120 party countries (the U.S. and a several dozen other countries are "range states," which are encouraged to adhere to global or local agreements.) "Like never before in the 35-year history of [the treaty], migratory animals have become the global flagships for many of the pressing issues of our time. From plastic pollution in our oceans, to the effects of climate change, to poaching and overexploitation, the threats migratory animals face will eventually affect us all," said Bradnee Chambers, the executive secretary of the Convention on the Conservation of Migratory Species of Wild Animals, in a statement.
The African lion may have to wait until the next meeting, in the Philippines in 2017, before the U.N. adds the big cat to its list. Lions were the single proposed species that missed out - according to ABC News, a lack of information from the lion's home countries prevented the animal from being added.