Find out everything there is to know about fish and stay updated on the latest news with the comprehensive articles, interactive features and fish pictures at LiveScience.com. Learn more about these fascinating creatures as scientists continue to make amazing discoveries about fish.
How long can a fish survive out of water? Long enough, it seems, for a 120-foot (37 meter) tube to vacuum up the fish and shoot it upriver, closer to the salmon's spawning grounds, research shows.
Measuring 10 feet long and weighing in at more than 400 pounds, it's hard to imagine that the arapaima, the largest fish in the Amazon River basin, could ever go missing. But these huge fish are quickly disappearing from Brazilian waterways.