Miniature Tags Track Dragonflies

celardore writes "BBC News reports about the epic journeys taken by dragonflies searching for warmer climates have been revealed by scientists in the US. The team, led by researchers from Princeton University, found that the insects are capable of flying up to 85 miles (137 km) in a day. Each transmitter weighed about a third of a gram and had enough battery life to track an individual for 10 days; but tagging such small creatures is far from easy. "The challenge is first catching the dragonfly," said Professor Wilcove. Once caught, each transmitter was attached with a couple of drops of superglue and some eye-lash adhesive."

Comments

Re:Good use for tags

[VincenzoRomano]

May be handy to use on prisoners out on parole

May be. The bad news would come when this tag will become mandatory for everyone for every day usage.
In any case, unless you implant it very deep in the body, it can be removed or transplanted on someone else.
People is to be identified by something they are not by something they have. Also by something they know is not good, because in this case the knowledge, that is the information, can be copied, erased or modified. Our brains are not read-only.