Birds colour-match their interior designs

Researchers at the University of St Andrews have produced the first experimental evidence that birds actively select nest-building materials that camouflage their nests: published today in influential ornithological journal ...

Deterring ticks with citrus and millipedes

Why do birds, monkeys and other animals rub themselves with citrus and creatures like millipedes? One likely reason is because certain plants and arthropods contain natural repellents.

Nerve gas litmus test could sense airborne chemical weapons

(PhysOrg.com) -- Nerve gases are colorless, odorless, tasteless and deadly. While today's soldiers carry masks and other protective gear, they don't have reliable ways of knowing when they need them in time. That could change, ...

Paper strips can quickly detect toxin in drinking water

(PhysOrg.com) -- A strip of paper infused with carbon nanotubes can quickly and inexpensively detect a toxin produced by algae in drinking water. Engineers at the University of Michigan led the development of the new biosensor.

An inexpensive 'dipstick' test for pesticides in foods

Scientists in Canada are reporting the development of a fast, inexpensive "dipstick" test to identify small amounts of pesticides that may exist in foods and beverages. Their paper-strip test is more practical than conventional ...