Marine Animals Die With Unusual Warming off the Coast of Peru

Something is going on out there. Mysterious deaths of particular species of animals occur regularly. Recently dolphins died in their hundreds while thousands of pelicans died off the coast of Lima, Peru. This was followed by thousands of crustaceans dying.

The crustacean affected is red krill. It is known that some species of dolphin eat this food. Pelicans also surface feed for krill.  Why would a food source die after poisoning other animals?

These deaths are not being caused directly by humans with perhaps chemicals or pesticides. The reason is the ocean off the coast of Lima is warming up. Krill have been moving closer to the coast to avoid the heat. Environmentalists blame offshore oil exploration. The government says they died of natural causes, but the seemingly static La Niña with cool weather in the western Pacific (oddly currently warm in the east) is not natural.
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