Diego, a male sea lion, works with his keeper, Michelle Hanenburg, during a training session at Utah's Hogle Zoo in Salt Lake City on Thursday. Diego, 12, arrived in January from the Indianapolis Zoo and has been getting acquainted with his keepers, his pool and his fellow pinnipeds — Maverick, the other sea lion, and the three harbor seals. Diego weighs 667 pounds, compared to Maverick's 480 pounds, and came to Hogle Zoo with more than 50 learned behaviors, including a front flipper stand, smiling and doing the boogie. "We could not be more pleased with Diego's calm, agreeable disposition, or how well he's adjusted to his new home," Hanenburg said.