Incredible footage shows an elephant rushing to the rescue of her favourite trainer, who she believed to be drowning.
The video shows elephant Kham Lha wading across the river at the Elephant Nature Park in Chiang Mai, Thailand.
Trainer Darrick Thomson, 42, says he has formed an "inseparable bond" with Kham Lha since she was rescued and brought to the reserve last year.
Darrick, who is originally from Toronto, Ontario, pretended that he had got into trouble in the river, splashing and crying out for help.
The footage shows the elephant going towards him as he moves towards the river bank on the other side.