OK, so it's not a real T-rex, as you most definitely should have guessed based on geological history and whatnot. At CrossFit 817 in Forth Worth, TX, a member sported a dinosaur costume while going through their usual workout with hilarious results, of course.
One incredible video in particular, included in the series of shots below, shows the T-rex dismounting a rowing machine as other members stand by and understandably crack up. In another shot, they manage to complete a full handstand while wearing the bulky suit! This might be the most ridiculous fitness trend we've seen in a while, but it's also our favorite. Check it out below and you'll see why.