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Claudenet

25 Mar 2025 - 03:09 pm

Narwhals may be using their tusks to play, new study finds
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Scientists say they have the first recorded video evidence of narwhals using tusks not only to strike and manipulate fish during feeding but also engage in what appears to be playful behavior, according to the latest research.

The narwhal, often referred to as the “unicorn of the sea” in a nod to its trademark tusk, has long remained an enigma. Scientists have observed few interactions of narwhals in their natural habitat, creating speculation about the purpose of the species’ distinctive spiraling tusk.
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Found predominantly in males, the tusk grows up to 10 feet (3 meters) long — and previous research has suggested it serves as a competitive display to secure mates. But now, with the help of drones, research conducted in the Canadian High Arctic has uncovered that a narwhal may use its tusk for more than just courtship.

In total, the researchers newly identified and described 17 distinct behaviors of narwhals involving prey. The findings revealed a wide range of interactions and dynamics between narwhals and fish as well as the extraordinary agility, precision and speed of their tusks to track moving targets, according to the study published February 27 in the journal Frontiers in Marine Science.

“Seeing that these animals are not actually hunting the fish but exploring, manipulating and interacting with it was really a game changer,” said lead author Dr. Gregory O’Corry-Crowe, a research professor in the Harbor Branch Oceanographic Institute at Florida Atlantic University.

Since so little is understood about this whale species, researchers like O’Corry-Crowe and his colleagues are working diligently to conduct studies to document narwhals’ unknown behaviors to better understand how these animals adapt in a rapidly shifting habitat as oceans warm and sea ice melts.
Narwhal exploratory behavior
The study team captured the groundbreaking footage using drones in Creswell Bay, on the eastern side of Somerset Island in Canada’s Nunavut territory, during the summer of 2022.

As the researchers analyzed the footage, they noticed subtle nuances in the narwhals’ behavior. Footage even captured one instance of a narwhal interacting with a fish by repeatedly nudging it with its tusk — which is actually a giant tooth — without attempting to eat it.

When researchers observed a lack of aggression in some interactions between narwhals and fish, they realized these scenarios were more similar to a cat-and-mouse game, in which the animals were chasing or “playing” rather than hunting, O’Corry-Crowe said.

Denniszix

25 Mar 2025 - 03:07 pm

Narwhals may be using their tusks to play, new study finds
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Scientists say they have the first recorded video evidence of narwhals using tusks not only to strike and manipulate fish during feeding but also engage in what appears to be playful behavior, according to the latest research.

The narwhal, often referred to as the “unicorn of the sea” in a nod to its trademark tusk, has long remained an enigma. Scientists have observed few interactions of narwhals in their natural habitat, creating speculation about the purpose of the species’ distinctive spiraling tusk.
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Found predominantly in males, the tusk grows up to 10 feet (3 meters) long — and previous research has suggested it serves as a competitive display to secure mates. But now, with the help of drones, research conducted in the Canadian High Arctic has uncovered that a narwhal may use its tusk for more than just courtship.

In total, the researchers newly identified and described 17 distinct behaviors of narwhals involving prey. The findings revealed a wide range of interactions and dynamics between narwhals and fish as well as the extraordinary agility, precision and speed of their tusks to track moving targets, according to the study published February 27 in the journal Frontiers in Marine Science.

“Seeing that these animals are not actually hunting the fish but exploring, manipulating and interacting with it was really a game changer,” said lead author Dr. Gregory O’Corry-Crowe, a research professor in the Harbor Branch Oceanographic Institute at Florida Atlantic University.

Since so little is understood about this whale species, researchers like O’Corry-Crowe and his colleagues are working diligently to conduct studies to document narwhals’ unknown behaviors to better understand how these animals adapt in a rapidly shifting habitat as oceans warm and sea ice melts.
Narwhal exploratory behavior
The study team captured the groundbreaking footage using drones in Creswell Bay, on the eastern side of Somerset Island in Canada’s Nunavut territory, during the summer of 2022.

As the researchers analyzed the footage, they noticed subtle nuances in the narwhals’ behavior. Footage even captured one instance of a narwhal interacting with a fish by repeatedly nudging it with its tusk — which is actually a giant tooth — without attempting to eat it.

When researchers observed a lack of aggression in some interactions between narwhals and fish, they realized these scenarios were more similar to a cat-and-mouse game, in which the animals were chasing or “playing” rather than hunting, O’Corry-Crowe said.

Drewtrayha

25 Mar 2025 - 02:11 pm

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25 Mar 2025 - 12:42 pm

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Donaldzep

25 Mar 2025 - 11:11 am

Lying down and vomiting between courses: This is how Ancient Romans would feast
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Imagine, if you will, the most glorious festive feast, with an oversize turkey, stuffing two ways, holiday ham, the requisite fixings and at least half a dozen pies and cakes. That may all sound grand — that is, until you consider the extravagant displays of the ancient Roman banquet.

Members of the Roman upper classes regularly indulged in lavish, hours-long feasts that served to broadcast their wealth and status in ways that eclipse our notions of a resplendent meal. “Eating was the supreme act of civilization and celebration of life,” said Alberto Jori, professor of ancient philosophy at the University of Ferrara in Italy.
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Ancient Romans enjoyed sweet and salty concoctions. Lagane, a rustic short pasta usually served with chickpeas, was also used to make a honey cake with fresh ricotta cheese. The Romans used garum, a pungent, salty fermented fish sauce for umami flavor in all dishes, even as a dessert topping. (For context, garum has a similar flavor profile and composition to current-day Asian fish sauces such as Vietnam’s nuoc mam and Thailand’s nam pla.) The prized condiment was made by leaving fish meat, blood and guts to ferment inside containers under the Mediterranean sun.
Game meat such as venison, wild boar, rabbit and pheasant along with seafood like raw oysters, shellfish and lobster were just some of the pricey foods that made regular appearances at the Roman banquet.

What’s more, hosts played a game of one-upmanship by serving over-the-top, exotic dishes like parrot tongue stew and stuffed dormouse. “Dormouse was a delicacy that farmers fattened up for months inside pots and then sold at markets,” Jori said. “While huge quantities of parrots were killed to have enough tongues to make fricassee.”
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Giorgio Franchetti, a food historian and scholar of ancient Roman history, recovered lost recipes from these repasts, which he shares in “Dining With the Ancient Romans,” written with “archaeo-cook” Cristina Conte. Together, the duo organize dining experiences at archaeological sites in Italy that give guests a taste of what eating like a Roman noble was all about. These cultural tours also delve into the eyebrow-raising rituals that accompanied these meals.

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25 Mar 2025 - 10:24 am

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Louiswrinc

25 Mar 2025 - 10:21 am

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25 Mar 2025 - 08:37 am

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25 Mar 2025 - 08:13 am

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25 Mar 2025 - 03:50 am

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