New research harnessing fragmentary fossils suggests our genus has come in different shapes and sizes since its origins over two million years ago, and adds weight to the idea that humans began to colonise Eurasia while still small and lightweight.
Previously believed to be only man-made, a natural example of a functioning gear mechanism has been discovered in a common insect - showing that evolution developed interlocking cogs long before we did.
The University Museum of Zoology, Cambridge will be closed to the public from June 2nd 2013. Subject to planning permission, the museum will be undergoing a major redevelopment.
Dr Andrew Gillis shows us an embryonic skate head and explains how the red denticles dotted all over it have very similar properties to human teeth.
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