When sea ice melts, polar bears must move onto land for several months without access to food. This fasting period is challenging for all bears, but particularly for polar bear mothers who are nursing cubs.
Plants & Animals
Oct 6, 2023
0
10
To hunt the narwhal, whose long tusk was the unicorn horn of medieval myth, you need absolute silence.
Ecology
Oct 4, 2023
0
1
Plastic particles less than 5 mm in size are called "microplastics." These tiny bits of plastic are often found in industrial effluents or form from the degradation of bulkier plastic waste. Research shows that large amounts ...
Environment
Sep 27, 2023
0
60
Polar bears are a familiar sight to many through the media as we see evocative images of singular bears floating on isolated ice rafts as they face the harsh realities of climate change shrinking sea ice in the Arctic. Their ...
Space scientists have discovered a new process to test for life on Mars and on Earth, using cutting-edge technology to sequence DNA using the tiniest possible sample of DNA mass.
Astrobiology
Sep 25, 2023
0
19
The Mariana Trench, the deepest place on Earth, plunges nearly 11,000 meters at its lowest point on the floor of the Pacific Ocean. Life persists in the deep and cold darkness, and "wherever there's life, you can bet there ...
Ecology
Sep 20, 2023
0
47
Polarimetric imaging can uncover features invisible to human eyes and conventional imaging sensors, and it is becoming an ever more essential technique in modern society. Conventional polarimetric imaging systems require ...
Optics & Photonics
Sep 18, 2023
0
43
Lanthanide-doped upconversion nanoparticles (UCNPs) demonstrate many superior properties of broadly-tunable multicolor emission and long emission lifetimes. This makes them well-suited for many light-emission applications. ...
Optics & Photonics
Sep 18, 2023
0
0
Canada's ongoing and record-breaking wildfire season and the recent heat waves around the world have galvanized Western public attention to the climate crisis like never before.
Environment
Sep 15, 2023
0
1
In the frigid waters surrounding Antarctica, an unusual seasonal cycle occurs. During winter, from March to October, the sun barely rises. As seawater freezes it rejects salts, creating pockets of extra-salty brine where ...
Ecology
Sep 14, 2023
0
28
