Stunned onlookers have filmed a redback spider descending its web to bite a young brown snake.

Video of this latest bout of interspecies rivalry was posted to North Vic Engines Cobram Facebook page yesterday , and shows an infant snake trying to wriggle free of the web before the highly venomous spider can reach it.

Undeterred by the snake’s significantly larger size, the redback bites the other predator multiple times, while egged on by human bystanders.

The video, filmed at a Cobram car engine reconditioning facility, has since been viewed more than a million times.

Some social media users have since expressed scepticism, claiming the snake was deliberately held in place with a fish hook in order to allow the spider to attack it.

North Vic Engines Cobram employee Brenton Marr has confirmed to 9news.com.au that humans played no part in staging the attack.

He added that other staff have witnessed a spider attacking a snake on the premises before.

Mr Marr has since posted another video featuring a second brown snake, found entangled in a spider's web.

Mr Marr said that while he and his staff endeavour to keep the country-based workshop tidy, it is impossible to deter animals from entering the site.

The spider's remarkable feat is by no means the first of its kind, with the arachnid known on occasion to capture and kill small animals, among them lizards, snakes and - in at least one case - a mouse.

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The redback is a species indigenous to Australia, with around 2000 people bitten by the spider each year.

The bite is rarely lethal to humans but can lead to severe pain and a number of other symptoms.