lab
Greenlandic research institute whose biologists were needed to interpret the imaging results and who found no behavioural evidence for a sensing role.
No evidence-backed relationships are recorded.
Between 2017 and 2020 a Greenland Institute of Natural Resources team let tagged narwhals profile East Greenland, and the whales found Atlantic-origin water reaching in beneath the glaciers of Scoresby Sound.
Reality
The tusk stays straight, the authors say, because its inner and outer tissues twist in opposite directions. A leading tusk specialist accepts that anatomy and rejects what the same paper says the tooth is for.
Reality
Six whales carrying temperature and salinity tags returned profiles from basins where research ships turn back, roughly matching everything previously archived for Scoresby Sound and giving melt models a measured input where they had estimates.
Perspective Coverage
3 publishersReality
A new Frontiers in Marine Science study documents fin, humpback and minke whales feeding in numbers along a coast where they were once rare. The consumption estimate is the part managers should read.
Reality
3D X-ray work at three synchrotrons shows the tusk's outer layer coils left while its core coils right, the two meeting at the dentin-cementum boundary. The stiffness gain is still an inference.
Perspective Coverage
3 publishersReality