It's enough to make your skin crawl massive spiders slowly devouring their prey as they lay helpless trapped in their webs.

Ninemsn readers have shared their incredible photos of spiders attempting the seemingly impossible to eat tree snakes and birds several times their size.

Cairns resident Ant Hadleigh told ninemsn he was amazed to see a golden orb spider kill and then eat a brown tree snake in a friend's backyard earlier this week.

I've heard of spiders eating small birds, but I thought it was rare. I guess spiders are getting smarter... maybe so smart they'll start capturing little kids and eventually fully grown adults.