When Su Yun bought her family a puppy two years ago, she was surprised by how much the dog ate. “A box of fruits and two buckets of noodles every day,” she told Chinese media.

There was, it turns out, a reason for its prodigious appetite: the animal has grown into a 250lb bear.

The family realised their error when the pet did not stop growing and started showing a talent for walking on two legs.

Asiatic Black Bear raised as a pet dog (CGTN)

“The more he grew, the more like a bear he looked,” said Ms Yun, a villager living near the city of Kunming in Yunnan province. “I am a little scared of bears.”

The animal has now been taken into care at the Yunnan Wildlife Rescue Centre after the family got in touch requesting help. Footage taken by officials shows it standing about a metre tall. Staff were so intimidated by the animal – which had lived in the family home – they sedated it before transportation.

It has been identified as an endangered Asiatic Black Bear, which would fetch thousands of pounds if sold on the black market.

The family say they bought the animal believing it to be a Tibetan mastiff while on holiday in 2016.

Lion, bear and tiger live together Show all 7 1 /7 Lion, bear and tiger live together Lion, bear and tiger live together Leo, Baloo and Shere Khan - "brothers" since cubs Noah's Ark Animal Sanctuary Lion, bear and tiger live together Leo watching Shere Khan wade through their enclosure's creek Noah's Ark Animal Sanctuary Lion, bear and tiger live together Leo and Shere Khan Noah's Ark Animal Sanctuary Lion, bear and tiger live together The BLT (Leo, Baloo and Shere Khan) while still cubs Noah's Ark Animal Sanctuary Lion, bear and tiger live together Baloo licking Shere Khan's nose Noah's Ark Animal Sanctuary Lion, bear and tiger live together Baloo nuzzling his "brother" Shere Khan Noah's Ark Animal Sanctuary Lion, bear and tiger live together (From left) Shere Khan, Leo and Baloo on the verandah of their enclosure den Noah's Ark Animal Sanctuary

Any embarrassment they felt may have been mitigated by the fact they are not the first among their neighbours to mistake the ursine for the canine when on the lookout for a family pet.