Dr Marnie Blewitt wants to know how a human being is made: how does a single fertilised egg develop into an adult with millions of cells performing a myriad of different functions.
“How does a cell know which of its 30,000 or so genes should be active and which should be dormant?” says Marnie, a researcher at the Walter and Eliza Hall Institute of Medical Research.
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People who live outside Australia often regard kangaroos as strange, specialised, relic animals. Not so, says palaeontologist Dr Ben Kear at La Trobe University in Melbourne.
They represent a high point in mammal evolution, he says, a generalised body plan that has adapted to a wide variety of environments, from rainforest to deserts, from rocks to trees. ”Some may even have been carnivores.”
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