Your first instinct when you spot a buzzing insect nearby is often to swat at it, but not every bug is a foe. Some are friends and worth a second look. Consider the hover fly, a tiny but mighty bee ...

Some species of spider can grab prey out of the air at night apparently without seeing it, and now we know how. An analysis of one such spider shows it uses its legs to pick up the sound of flying ...

Engineers are (rapidly) getting better at building smaller and smaller robots. Last year, for example, researchers at Purdue University made microbots capable of somersaulting their way through people ...