Jeremy, on the other hand, is more reserved and allows his brother to test out things first. That doesn't stop him from indulging in sillier moments, which sometimes include sitting on top of his brother if the opportunity presents itself.
"Where you find one, you find the other ... They are provided a large, free-roaming habitat with lots of platforms to climb on, a pool to swim in and toys to play with," Thies said. "They each have heated indoor rooms where they are fed separately, but choose to sleep together in one room."