It will surprise no one in the field of zoology that best practice policy changes with time, and it will probably surprise even fewer that this change looks dramatically different depending on which kinds of animal you work with. Larger, more charismatic species – in particular mammals – have ushered an influx of new observations on welfare, habitat design, diet, and training at a rate that has not been witnessed in other taxa. It is for this reason that cetacean keepers have led the field for decades in terms of behavior and training, from Karen Pryor to Ken Ramirez. It…