Well, I've often kind of wondered if the physical power of animals is overestimated. The reason is that you just hear wild stories that sound ridiculous for mammals. I remember reading on a site, one guy thought a chimp (IIRC these weigh 90 - 180 lbs) could lift 600 lbs on one hand with absolutely no effort. I believe a chimp could rip an average guy's arm off, but I'm pretty sure that lifting 15 - 20 times your own weight is something only insects and arachnids are capable of.
Also, I once saw on YouTube a TV show where a sumo engaged a female orang in a tug-of-war. The orang won but she was putting in a lot of effort before it was over, and she was using three limbs to pull the rope. Sumos are big guys, but I'm pretty sure they're all-fat compared to the guys from the "strongest man" contests. I suppose it's possible that the guys who made the show did something to make the sumo able to briefly compete, but then again...
Edit: I should also note that I once went on the internet and typed in "chimp strength". There was a site mentioning a scientific test on the intelligence of apes to see if two chimps could work together in order to move a heavy cage to escape an enclosure or get some food or something. I wonder how much that cage weighed. I also have heard that in some ways, muscle groups or something, human athletes are stronger than other animals. I'm pretty sure it was real when Cyr lifted a platform with 18 men, weighing a total of something like 4,300 lbs, on his back. And I wonder if a chimp could do that.
Edited by Baldrick Cunningplan, : No reason given.