Why are blue whales endangered?
Besides the commercial fishing, Blue whales are also endangered by its own nature. Whales in general can reach huge sizes because their weight is supported by water. If the larger whales such as the blue whale or sperm whale are beached, they cannot support their own weight. The weight of their bodies presses down on their lungs and inhibits their breathing to the point where they may suffocate and die. Their other internal organs may be crushed, as well. Even their skeletons cannot support the size of these whales without the benefit of the buoyancy of water, and they may suffer from broken backs.