26
Jul
I spent a year squeezing leaves to measure their water content. Here's what I learned »
How do you tell if your plants need water? Recently, I asked this question of a group of about 40 biologists at the Australian National University.
14
Jul
Reality and illusion in magpie-lark song-and-dance duets »
A new study shows Australian magpie-larks may use a ventriloquial illusion to make their vocal duets more threatening.
