http://wikiless.i2p/wiki/Whale?lang=en
They have large reserves of blubber, more so for toothed whales as they are higher up the food chain than baleen whales. Lactating mothers can pass the toxins on to their young. These pollutants can cause gastrointestinal cancers and greater vulnerability to infectious diseases. [ 98 ] They can also be poisoned by swallowing litter, such as plastic bags. [ 99 ] Advanced military sonar harms whales .