Top: The bombardier beetle can aim its noxious spray from two separate rear glands. Bottom: This colored scanning electron microscope image shows the structure of the two glands. To protect the ...

Scientists have tried to untangle the internal chemistry of bombardier beetles for decades. Because the beetle’s spray contains chemicals called benzoquinones, the prevailing hypothesis was that ...

At first glance, some insects look like harmless, even cute, creatures you wouldn’t mind having around. But don’t let their ...