4 Trained dolphins were transported to San Felipe, Mexico this week. They will be used to track and capture the remaining wild Vaquita Marina. 
The Vaquita is the world’s smallest Cetacean, and also the most endangered. There are estimated to be less than 100 in the waters where the Colorado River meets the Sea of Cortez.
The two countries are cooperating in a program that is administered by SEMARNAT, Mexico’s Environmental Agency. A site housing tanks has been built on the shore of the Sea of Cortez in San Felipe, Mexico. The captured Vaquita will stay in tanks here as old fishing net is removed from the area. The netting is one of the factors contributing to the species demise.