“A mature female vaquita, not pregnant or lactating, had been caught and transported successfully late in the afternoon on Saturday in the Northern Gulf of California and was taken to a specially-modified floating sea pen known as ElNido, or The Nest,” VaquitaCPR said in a statement. “From the moment of capture, the vaquita was under constant care and observation for its health and safety.”
“Marine mammal veterinarians monitoring the vaquita's health noticed the animal's condition began to deteriorate and made the determination to release,” VaquitaCPR continued. “The release attempt was unsuccessful and lifesaving measures were administered. Despite the heroic efforts of the veterinary team, the vaquita did not survive.”
"Everyone in the VaquitaCPR team is heartbroken by the loss of the vaquita," David Bader, a spokesperson for VaquitaCPR, told The Dodo. "We know that everyone will join us in offering their condolences to the team that has been working so hard to save this species."