Squid v Whale I've been thinking about this for a few days now, and I don't think a squid can eat a whale. Researchers say that giant squids mainly prey on sperm whales. Well, a squid's beak is small in comparison to its body, it is, supposedly, and 80 ft. squid, but still. The whale is 60 ft. long, I don't think the squid's beak can penetrate far enough into the whale to kill it, right off anyway. I think the whale could get to the surface and/or get the squid off of it before it could kill it. It could probably kill a baby whale, but that's it, and baby sperm whales are in short supply, and only around for a while.