These spiders:

http://www.huffingtonpost.com/2008/10/23/giant-spider-kills-...

[edit: see below post, this is australia. My bad. I googled "new zealand giant spider" and got that link. Regardless, NZ has the same spiders.]

That's Australia. But wow!

The ones you never see until it's too late.

So they are invisible huge spiders? No wonder I have never seen them.