A Malaysian sun bear cub guzzled milk from a baby bottle.

Footage shows the thirsty juvenile bear drinking the nutritious beverage inside its cage at the Huai Sai Wildlife Breeding Centre in Phetchaburi, Thailand, on October 24.

Staff said they were amused by the cub's behaviour, as it still preferred to drink from the bottle despite its growing size.

The centre also said it was accepting donations such as goat's milk, baby formula, mats, and cash.

The sun bear, also known as the 'honey bear', is a small bear species native to Southeast Asia, recognisable by its short, sleek black fur and distinctive chest patch. It is named after the golden or white V-shaped mark on its chest, said to resemble the rising sun.