Comment by rixed

I find the final question about human intervention fascinating.

  The scientists aren’t recommending intervention, even if the perpetrators tend to be the same few individuals. “We don’t know how natural it is,” says Ursula Siebert, a veterinary pathologist specializing in wildlife population health at the University of Veterinary Medicine Hannover who was not involved with the work. “It can definitely be hard to watch,” Langley adds. “But the life of a seal—and indeed any wild animal—is tough.”

This idea that human influence over nature should not reach beyond species boundaries, that there is no universal value common to several species, seems prevalent in natural sciences. Is it coming from an understandable but misleading distrust of human society and idealisation of "nature", or from a deeper understanding that "nature always knows better", I can't decide.