Very sad news.
Steve brought a very different and exciting angle to nature and was a great conservationist.
His work has brought a unique understanding of many animals to the forefront.
Reading some of the posts on the "news" forums he will be greatly missed all over the world.
His fan base is huge.
I for one am a great fan of his, as is my daughter.
Now when she see's a spider in the house she yells in a not to bad aussie voice "crikey, look at the size of this feller"
My thoughts are with his family right now, especially his young children who have not just lost a real life hero but their father to.