From the Ironman triathlon to the Tour de France, some competitions test the limits of even the toughest endurance athletes. Now, a new study of energy expenditure during some of the world's longest, most grueling sporting ...
Evolution
Jun 5, 2019
1
667
More time stranded on land means greater risk of starvation for polar bears, a new study indicates.
Plants & Animals
Feb 13, 2024
0
27
Hominins—the group that includes humans and our extinct relatives—may have been capable of competing with giant hyenas for carcasses abandoned by saber-toothed cats and jaguars during the late-early Pleistocene era (approximately ...
Evolution
Sep 28, 2023
0
110
A trio of marine researchers at Deakin University's School of Life and Environmental Sciences in Australia has found that little penguins attempt to optimize their predatory behavior by making trade-offs between minimizing ...
World-first 'phase change inks' that could transform how we heat and cool buildings, homes and cars—to achieve sophisticated 'passive climate' control—have been developed, with enormous potential to help reduce energy ...
Nanomaterials
Mar 27, 2023
0
87
Most animals alive today are ectothermic, or cold-blooded, which means that they are at the mercy of their environment when it comes to regulating their body temperature.
Plants & Animals
Mar 3, 2023
2
84
Sometimes, the most complex problems can be solved with the simplest approaches. Such was the case for researchers at UC Santa Barbara as they tried to resolve a longstanding issue of fluid friction—the resistance between ...
General Physics
Feb 2, 2023
0
253
Why do cells, and by extension humans, age? The answer may have a lot to do with mitochondria, the organelles that supply cells with energy. Though that idea is not new, direct evidence in human cells had been lacking. Until ...
Cell & Microbiology
Jan 12, 2023
0
39
A new study of thousands of people reveals a wide range in the amount of water people consume around the globe and over their lifespans, definitively spilling the oft-repeated idea that eight, 8-ounce glasses meet the human ...
Other
Nov 25, 2022
2
173
They are only very simple structures, but without them we could not survive: Countless tiny hairs (cilia) are found on the outer wall of some cells, for example in our lungs or in our brain. When these micrometer-sized hairs ...
General Physics
Nov 9, 2022
0
44
