The first modern humans may have evolved on the south coast of South Africa, where they were making and using stone weapons far earlier than previously believed.
A captive cockatoo has been observed spontaneously making tools to get at food - the first time any type of parrot's been seen to do this.
Imagine diving in Austrlia's Great Barrier Reef only to see a fish...using a tool.
Tools that sharpen themselves every time they're used could soon be available, following a discovery about the way sea urchins keep their teeth sharp.
Google has upgraded its popular search engine with a refined user interface (UI) that allows users to fully experience the "increasing richness" of the web.