Astronauts, geese and realistic retinas

This month, doctors doing U-turns: the medical practices without
much evidence to prop them up, wind-tunnel experiments reveal how
geese fly at extreme altitudes, why mating makes bees go blind,
stress remodelling the brain's myelin, and what goes on during a
stint aboard the International Space Station? Join Chris Smith for
a look inside the latest papers in eLife... Get the references and
the transcripts for this programme from the Naked Scientists
website