The inventors of the Post-it Note are helping to develop a minimally invasive tracking device that will be trialed on polar bear populations in Hudson Bay this fall. 

Responding to a tech challenge posed by Polar Bears International to find less invasive ways to track polar bears, U.S. manufacturing company 3M are drawing on their ability to make things stick. As tracking hardware evolves and shrinks in size, existing tracking collars are increasingly outdated. Both cumbersome and invasive, they are only effective on female polar bears, slipping off males due to their necks being as wide as their heads. 

The adhesive tracker testing currently being carried out by 3M and Polar Bears International in Hudson Bay is in cooperation with Manitoba’s Polar Bear Alert Program. Some testing has already been carried out on captive polar bears in zoos and aquariums throughout North America. 

The trackers will temporarily stick to a bear’s fur, passing on their movement data until they fall off the bear sheds its fur. This is an improvement on another method, ear tags, which require permanent attachment. The goal is to gather vital information by following them through their long and dark Arctic winter or when they’re far away on the sea ice.

Splooting squirrels

Squirrels have been causing a stir. Last month, with summer temperatures soaring in New York, locals became concerned after spotting Eastern grey squirrels in odd positions, often to the point of reporting the site to officials.

With their belly flat down and limbs and tail outstretched, the squirrels do make an odd sight. But fear not, say city officials, they are simply “splooting,” a term used to describe squirrels’ method of cooling down on hot days. By spreading out on cool surfaces they release heat and regulate their body temperature. A bundle of blood vessels at the base of their tail enables them to dissipate heat more efficiently. The splooting position is also used by other mammals for the same reason.

Next time you run into a motionless squirrel sprawled on the ground, the best thing to do is to leave it alone. Or if it’s really hot, why not try splooting for yourself?

The Galapagos of the North

The Galapagos Islands were recognized as a UNESCO World Heritage Site in the late 1970s. Their unique geography and wildlife inspired Charles Darwin’s theory of evolution in the nineteenth century, and today they are part of one of the largest marine reserves in the world.

No one would blame you if you started daydreaming about snorkelling with marine iguanas in such a magical place, but if you live in Canada, you needn’t go so far.

The Great Bear Sea, which was dubbed the “Galapagos of the North” in a recent interview, is a unique, biodiversity-rich area that stretches from the tip of Vancouver Island to the Alaskan border. It provides ecosystem services that have supported 32 First Nation coastal communities for millennia, hosts some of the most productive temperate coastal waters in the world, and provides habitat for an incredible variety of marine mammals and other species. 

A big difference between our “Galapagos” and the one in the Southern Pacific Ocean, however, is the lack of a marine protected area. Now, First Nations and conservationists are calling for its protection as countless species in the area are declining due to intensive human activity.

Algal boom