170426-N-QE668-096 KEY WEST, Florida (April 26, 2017) Trainers assigned to the U.S. Navy Marine Mammal Program prepare the dolphin Constellation for a training event off the coast of the Key West. The program maintains the mobility of its expeditionary Marine Mammal System to detect and mark the location of mine-like objects on the ocean bottom. (U.S. Navy Photo by Trice Denny/Released)