50 beached pilot whales perished in New Zealand on Friday. They were part of a pod of 80-90 whales spotted on the shore of remote Chatham Island. It is the fifth stranding in New Zealand in less than a week. Experts link the deaths to rising ocean temperatures. NZ is witnessing the warmest ocean temperatures on record and it is believed to be affecting whale behaviour. Naturally occurring El Nino weather pattern, global warming caused by climate change lead to this.