Researchers at PolarBears International, YorkUniversity, and 3M are winners of the 2023 GizmodoScienceFair for developing a burr-like tracking device that sticks to polar bears’ fur.
Finding the right design was a challenge. They created several attachment prototypes, which they tested on faux fur and real bears. One is shaped like a pentagon, with a tracker box on a small platform. The fur is pulled through copper tubes, which researchers then crimp to hold the fur in place. Another is the tri-brush attachment, which looks like a metal triangle with strong pipe-cleaner like brushes on each side that tangle into the bear’s fur.
The tracking devices give researchers satellite data about a bear’s location. York University professor Gregory Thiemann explained that researchers are emailed coordinates that they map onto GIS or Google Maps and use that to learn patterns. During a deployment in late 2021, Thiemann and other researchers saw that, in the fall, bears spent a lot of time resting and eventually became more active as the weather became colder.
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