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kulr8.com > news > national > why-does-a-narwhal-s-tusk-twist-and-what-s-it-made-of > article_bb6a206d-8696-5b79-867d-d53a6f1d82c6.html

Why does a narwhal’s tusk twist and what’s it made of?

3+ week, 6+ day ago   (859+ words) Narwhals in Northwest Greenland. (Carsten Egevang / Greenland Institute of Natural Resources via SWNS) Hidden secrets of the narwhal's twisted tusk have been revealed using the latest X-ray technology. Tusks of the species of whale native to the Arctic have long…...


en.socportal.info > en > news > our-ancestors-may-have-lived-in-pairs-as-far-back-as-the-time-of-the-dinosaurs-scientists-have-revised-the-history-of-mammals

The earliest placental mammals may have lived in pairs alongside the dinosaurs

4+ day, 2+ hour ago   (557+ words) The earliest placental mammals may have been far more social than previously thought. A phylogenetic model has shown that their common ancestor was largely solitary, but living in pairs was already part of its potential social repertoire. The distant common…...


pbs.org > video > greenland-ice-sheet-fpilph

Ages of Ice | Greenland Ice Sheet | Episode 1

2+ week, 5+ day ago   (610+ words) Professor Alun Hubbard is studying the cause of meltwater on the Greenland ice sheet. Clip: Episode 1 | 4m 58sVideo has Closed Captions | CC Glaciologist, Professor Alun Hubbard conducts field work on the Greenland ice sheet during the summer season. Abseiling into a moulin…...

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