These elephants at the Oregon Zoo are getting in shape, and they have their very own fitness trackers.
Giant FitBit-like accessories are attached to their ankles and they’ve been wearing them for six years.
The devices feed information about the elephants' behavior to scientists, who are monitoring the animals.
Some elephants have doubled their usual walking distance since the zoo expanded its exhibit for the animals.
The expansion was designed to increase activity among the elephants, and the study has proven that it's working.