The cockroach

The cockroach

An extermination trick that married insecticide with sugar worked for a while — but then suddenly lost its power against roaches. Now science tells us why, as it highlights once again how human actions affect natural selection. More »

Moles smell in stereo!

Moles smell in stereo!

A common mole never sees the light of day, but it can pinpoint the source of food in just a few seconds — thanks to its newfound stereo smelling ability. If two ears help you hear in stereo, what good are two nostrils? More »

Body odor

Body odor

Study finds that male body odor is harder to mask, but the male nose is more easily confused. Info lends insight into human mating, and helps perfume makers. So what’s in your deodorant? More »

Mechanical mouth makes debut

To measure the molecules that give food taste, you need a standardized eating machine. One has finally arrived, courtesy of food technologists in France (of all places!). Meet the mechanical masticator! More »

Learning to read mouse pee

Mice can tell the sex, mating status and identity of another mouse — all from sniffing urine. A new study of how mice read pheromones also gives insight into the human sensory apparatus… More »