Narwhals may not be much good at hunting in summer, according to new research that warns the unicorn-tusked whales may be dangerously reliant on their ice-bound winter habitat that could "disappear" with climate change.
Plants & Animals
Feb 22, 2023
0
120
The tracking of cold-water creatures offers insights into the worrisome effects of global warming.
Plants & Animals
Dec 29, 2022
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40
A team of researchers affiliated with several institutions in Canada and Denmark has found evidence that narwhals have been altering their seasonal migration patterns in response to global warming. In their paper published ...
Researchers have used the mathematical equations of chaos theory to analyze the data from long-term monitoring of an electronically tagged narwhal. They have extracted previously undetected diurnal patterns within what initially ...
Ecology
Sep 22, 2022
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37
The reaction of narwhals to the loud noise from seismic air guns used in oil exploration involves a disruption of the normal physiological response to intense exercise as the animals try to escape the noise. The overall effect ...
Plants & Animals
Jul 8, 2022
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151
For millennia, vast expanses of the Arctic Ocean have been untouched by humans, ocean where narwhals and other marine mammals lived undisturbed. Now that climate change is causing sea ice to melt, there has been an uptick ...
Plants & Animals
Dec 17, 2021
1
950
An algorithm can predict when narwhals hunt—a task once nearly impossible to gain insight into. Mathematicians and computer scientists at the University of Copenhagen, together with marine biologists in Greenland, have ...
Ecology
Jun 16, 2021
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11
Every year, a new growth layer is added to the narwhal's spiraled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental ...
Ecology
Mar 11, 2021
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70
With the help of Inuit hunters, geophysicists recently recorded the various calls, buzzes, clicks and whistles of narwhals as they summered in a Greenland fjord. The recordings help scientists better understand the soundscape ...
Plants & Animals
May 26, 2020
2
1099
Showy peacock feathers, extravagant elk antlers and powerful crayfish claws are just a few examples of the ostentatious animal extremes used to compete for and attract mates, a process called sexual selection.
Plants & Animals
Mar 17, 2020
0
178
