Those of you that have spoken to me before will know how I'm struggling to get my head around spiders, so I thought I would tell you about the spider I was watching today.
On one of the windows at work is a huge garden spider (sorry guys, no scientific name). Struggling in it's web was a huge wasp - queen? - which the spider had already partially wrapped. After I had been watching for a while the spider scurried down to the wasp and wrapped it up tighter before starting to drag it to the top of the web. The wasp was the same size as the spider, and was moving, but the spider still managed to pull it up.
It was one of those moments when you just wish you had a camera.
Why didn't the wasp sting the spider?

Why didn't the spider kill the wasp straight away?