Santra, Yoga Bear, Ähtäri ZOO, Finland

Paul Harvey, a Bristol-based yoga teacher and trainer, said Santra was indeed practising the ancient Indian discipline.
"She looks like quite a lonely bear," he said. "Perhaps she's doing yoga to keep herself sane." Harvey, who has taught yoga for 35 years, identified a number of posture variations in Penca's pictures. "The first is spread legs, holding big toes or feet – and she's doing a pretty good job with claws," he said. "The second is the same posture, with chanting. The third is a one leg variation, the fourth a variation with the other leg. The fifth is a seated head-to-foot posture. Six is a single raised leg stretch and seven is a seated, spread-legs forward bend."
The bear's flexibility and balance, he added, marked her out as something of an expert: "These are not beginners' postures. Yogi bear is definitely an advanced practitioner."