---

The country has been suffering a severe drought in recent months, with many snakes venturing out of their natural habitat in search of food.

The couple, from Belgrade, Serbia, beckoned over the red-tailed green rat snake, which is harmless to humans, from its tree branch and gave it a drink from their bottled water.

Footage shows the snake lapping up the fresh liquid from Nenad's palm in the Phanom Bencha National Park.