Narwhals released after entanglement in nets and outfitted with heart monitors performed a series of deep dives, swimming hard to escape, while their heart rates dropped to unexpectedly low levels of three to four beats per ...
Plants & Animals
Dec 7, 2017
0
102
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
0
151
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
Analysis of some of the first recordings of wintering narwhals showed that they may have the most directional sonar of any species, according to a study published November 9, 2016 in the open-access journal PLOS ONE by Jens ...
Plants & Animals
Nov 9, 2016
0
19
Narwhals are often called the unicorns of the sea. The long tusk of the male narwhal sets these whales apart, but it's not the only thing that makes Monodon monoceros among the most intriguing and mysterious marine mammals.
Ecology
Jan 15, 2020
0
4
Narwhals—enigmatic arctic whales known for their sword-like tusk—spend over half their time diving to find food but are also able to last up to three days without a meal, according to a study by Manh Cuong Ngô and colleagues ...
Plants & Animals
Mar 14, 2019
0
12
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
0
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
0
70
The clicking, buzzing and calling behavioral patterns of elusive East Greenland narwhals have been described thanks to in-depth recordings, in a study published June 13, 2018 in the open-access journal PLOS ONE by Susanna ...
Plants & Animals
Jun 13, 2018
0
4
A lonely narwhal that strayed far from its Arctic habitat has apparently found a new family in a pod of belugas in Canada's Saint Lawrence River, a marine conservation group said Thursday.
Plants & Animals
Sep 14, 2018
0
3
