"For a land predator. Birds and fish, obviously, don't have arms! ;)" Not all predatory birds have flown - the Terror Birds were a fine example of 2-legged, land predation without using arms. Also, there's a lot of predatory snakes :lol I doubt very much that T-Rex would pass up an easy meal - but I have real trouble understanding the "he couldn't use his arms for much so he must have scavenged" argument. Let's ignore the idea that T-rex could lift maybe 400 pounds with those arms (small compared to the rest of the body, but still strong enough to impress Schwarzenegger). Just cut the arms right out of the equation and you're left with direct equivalents in ground birds. You'd have to hack the legs off as well before he's as disabled as a snake - and even snakes can somehow manage to catch and kill their own dinners. Crocodiles, alligators, iguanas, chameleons, frogs... there's a lot of critters that don't rely on their forelimbs to catch live prey, and they do rather well. Cheers, Cliff