One of the most important problems of extinction of whales is that in the oceans gets plastic and all unnecessary things for the ocean. one of the most important problems is that when a whale swallows a ton of fish in the oceans and swallows what gets in its way-there are plastic bags, etc. and when it swallows it all gets stuck in the stomach and the stomach can not digest it and the whale dies! not when you do not throw plastic packages, bottles, etc. take care of nature!