October 27, 2006—You may wish you had a slingshot if you run into this goliath.

The goliath birdeater tarantula of South America is arguably the biggest spider in the world. The venomous night hunter can grow to be one foot (30 centimeters) long and sports one-inch (2.5-centimeter) fangs.

Watch as one hapless mouse wanders into a spider's deadly trap, and see the unusual adaptations that make the goliath one of nature's deadliest ambushers.