The mosquito, sworn enemy of exposed ankles and elbows, locates each bloody meal using a finely tuned sense of smell. Yet, not all insects can sniff out vulnerable flesh. Butterflies, for example, ...

Discover interesting facts about insects, the critters whose combined weight on the planet is 70 times that of all humans.

Researchers describe, for the first time, the structure of a smell-receptor protein common among insects. Its inner architecture illuminates how insects evolved to detect an amazing diversity of odors ...