The Sydney funnel-web spider has extremely dangerous venom, but according to a new study this spider is actually three ...

The Sydney funnel-web spider has extremely dangerous venom, but according to a new study this spider is actually three different species — one of which, the "Newcastle big boy," is much larger.

Scientists have named the 3.54-inch-long species Atrax christenseni, with a nickname of "Big Boy." Common Sydney funnel-web spiders, in comparison, can grow up to nearly 2 inches.

The Newcastle funnel-web spider, Atrax christenseni, the most venomous spider in the world. This spider species was originally thought to be the same as the Sydney funnel-web, Atrax robustus.

A larger and more venomous species of one of the world's deadliest spiders has been confirmed by Australian scientists. Nicknamed 'big boy', it can grow up to 9cm (3.54 inches) compared with 5cm ...