10 July 2020
A study of primitive fish fossils reveals the system by which humans, and other jawed vertebrates including sharks, grow new teeth is over 400 million years old.
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10 Jul: This Canberra headquarters looks like any other nondescript government building but, a few steps inside the lobby, a lattice made up of zeros and ones provides a clue as to what's going on inside. Here's what happens in Australia's 24/7 cyber security wat... more