Mar. 11, 2021 —Every year, a new growth layer is added to the narwhal's spiralled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of ...
Mar. 29, 2021 —In the Arctic, climate change and pollution are the biggest threats to top predators like narwals. Studying the animals' tusks reveals that diet and exposure to pollution have shifted over the ...
Dec. 17, 2021 —The iconic tusked whale of the Arctic has a new enemy -- noise. A unique study shows that narwhals are highly affected by noise from ships and seismic airgun pulses -- even at 20-30 kilometers away. ...
Sep. 1, 2021 —Warming oceans have driven the critically endangered North Atlantic right whale population from its traditional and protected habitat, exposing the animals to more lethal ship strikes, disastrous ...
Dec. 21, 2021 —As the Arctic and the oceans warm due to climate change, understanding how a rapidly changing environment may affect birds making annual journeys between the Arctic and the high seas is vital to ...
May 31, 2023 —Even without nerves, plants can sense when something touches them and when it lets go, a study has found. In a set of experiments, individual plant cells responded to the touch of a very fine glass rod by sending slow waves of calcium signals to other plant cells, and when that pressure was ...
May 23, 2023 —A global phase 3 clinical trial found that a year-long immunotherapy through a skin patch safely desensitized toddlers with peanut allergy, lowering the risk of a severe allergic reaction from accidental ...
May 17, 2023 —Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which living animals are the descendants of the earliest animals to evolve in the world's oceans? Scientists performed a detailed chromosomal analysis that comes down definitively in favor of comb jellies, ...
May 10, 2023 —Surveying the body sizes of Earth's living organisms, researchers found that the planet's biomass -- the material that makes up all living organisms -- is concentrated in organisms at either end of the size ...
June 15, 2023 —192 countries and 125 different foods: A recent study reveals interdependencies in the global food supply. Here, the researchers have uncovered the ...
June 14, 2023 —Have you ever noticed an ant in your home, only to find that a week later the whole colony has moved in? The traps you set up catch only a few of ...
June 14, 2023 —A survey of groundwater samples drawn from aquifers beneath more than 80,000 square miles of Canadian prairie reveals ancient groundwaters harbor not ...
June 14, 2023 —Researchers have identified the major mechanism behind the transition between chronic and acute P. aeruginosa infections. Their research findings can inform the development of future treatments for ...
June 12, 2023 —Keto diets shrink pancreatic and colorectal tumors by starving them of the glucose they need to survive. But they also speed up development of a lethal wasting disease called cachexia. In mice, ...
June 12, 2023 —Researchers are describing the results of a recent clinical trial -- a breakthrough in glioblastoma treatment with the help of a modified cold virus injected directly into the tumor. When combined ...
June 8, 2023 —The largest survey and data compilation of its kind --- from more than 21,000 dog owners --- has revealed the social determinants that may be tied to ...
June 13, 2023 —The first image of the structures that power human cilia -- the tiny, hairlike projections that line our airways -- has now been produced and it could lead to much-needed treatments for people with ...