Our pets know they are about to die and wish us an emotional farewell – I'm convinced these stories prove it, by eminent biologist RUPERT SHELDRAKE

Piglet the Jack Russell seemed to be fading away. He was half blind, barely able to walk and spent most of his days asleep. But one morning, Piglet seemed to be rejuvenated. Piglet the Jack Russell seemed to be fading away. He was half blind, barely able to walk and spent most of his days asleep. But one morning, Piglet seemed to be rejuvenated.