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#wildlife
ohinteresting · 43 minutes ago
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(April 1, 2021)
Researchers have long debated what the 10-foot-long tooth that erupts from a narwhal’s head is actually  for. Perhaps it has something to do with sexual selection, and males with longer horns attract more females. Or maybe the things sense salinity. Or perhaps a narwhal uses its tusk to flush out prey on the ocean bottom.
Whatever the purpose, scientists know this for certain: The Arctic region, which the narwhals call home, is warming twice as fast as the rest of the planet, and by analyzing these tusks, researchers can glean surprisingly detailed insights into how the animals are dealing with catastrophic change. It’s not looking good.
Writing in March in the journal Current Biology, scientists described what they found in 10 tusks collected from animals in northwest Greenland. Because a tusk grows continuously over the many decades of a narwhal’s life, the researchers could read the outsized teeth like the rings of a tree. They found that between 1962 and 2000, the mercury in the tusks increased by an average of 0.3 percent a year, but between 2000 and 2010 it increased by 1.9 percent per year. This is consistent with increased mercury discovered in the bodies of other top predators in several regions across the Arctic, possibly due to air pollution blowing in from the south.
The scientists are also finding evidence in the tusks that the narwhals’ diet is changing, from consuming species associated with sea ice to eating more open-ocean species. This corresponds to a dramatic decline in Arctic sea ice since the year 1990.
“Instead of doing 40 years of work to get 40 years of data, you can in one year of work get narwhal tusks and go back 50 years in time,” says McGill University wildlife toxicologist Jean-Pierre Desforges, one of the lead authors on the paper. “So that's the really remarkable thing.”
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emphatic-nomadic · 44 minutes ago
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Enjoying the view
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birds-and-friends · an hour ago
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Full video: Black Sicklebill, Timothy Boucher
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photoopss · an hour ago
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Banded Archerfish (Toxotes jaculatrix)
taken at the Aquarium of the Pacific in Long Beach, California
status: least concern
And time for an early photo post of a new trip being queued! First set of aquarium photos in a long time but likely a sign of even more to come! I have also officially reached the point where I can now afford to post twice a week so there will now be a post every Wednesday and Friday.
This family of fish are very unique. The Banded Archerfish is best known for shooting a jet of water via a groove in the roof of its mouth and its tongue at unsuspecting bugs above to make them fall into the water where it will quickly consume it.
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swkrullimaging · 2 hours ago
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A Wildlife Photography Smorgasbord
A Wildlife Photography Smorgasbord
I wasn’t sure what I would encounter this morning as I made the familiar trip to Eleven Mile Canyon. I knew that shooting the eagles and osprey was going to be an iffy proposition with both species in the midst of their brooding and hatching season. I always look for elk and deer as I pass the beautiful Florissant Fossil Beds National Monument. Even though they are rarely spotted, large herds of…
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ibotanicz · 2 hours ago
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Springtime Rabbit Fun! #sun #sunday #saturday #spring #summertime #nature #naturelovers #bunny #animals #wildlife #Denver (at Cherry Hills Village, Colorado) https://www.instagram.com/p/CNgM--tBVrE/?igshid=fp2std85973d
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quique72 · 3 hours ago
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longingforrotkehlchen · 3 hours ago
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The effort. The struggle. The satisfaction. Let’s face it, we’ve all been there. 💩
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Gartenbaumläufer (short-toed treecreeper) im Mittleren Schlossgarten, Stuttgart-Mitte.
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mcrcoelho · 4 hours ago
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maddaddy316 · 4 hours ago
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afairymind · 6 hours ago
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Early Mining Bee
Early Mining Bee Day 312 of #365DaysWild
On day 312 of 365 Days Wild I spotted some small bees while out on my daily walk. I think they might be Early Mining Bees (Andrena haemorrhoa). These bees, which are quite widespread and common across Britain, are generally solitary creatures, though small groups of females can occasionally be seen. They can be found nesting in lawns, pathways and other patches of grass, and their nests can be…
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wandering-in-the-mist · 6 hours ago
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Some friends were watching us do yardwork the other day- the sparrow sang almost the whole 5 hours we were out there.
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