A husband and wife got the fright of their lives when they stumbled across a spider eating an entire possum.

Justine Latton and her husband from Tasmania were on a road trip to Mt Field over the weekend when they came across the extraordinary scene.

She posted the photo of the huntsman spider devouring the pygmy possum to the 'Tasmanian insects and spiders' Facebook page.

Ms Latton posted the photo of the spider devouring the pygmy possum to Tasmanian insects and spiders Facebook page

Pygmy possums are a family of small possums.

The post has garnered 745 likes and has been shared almost 5000 times.

'Whoa that's one strong spidey!' one person commented.

'Awww. Everyone's gotta eat, but man!' another person commented.

'OMG what a once in a life time photo opportunity,' another person wrote.

'Would have been amazing to see from the onset of battle — would have been so hard to not step in and help the little possum though,' someone else wrote.