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Posts tagged with ‘nature’ (162)

What insects are teaching us about the Arctic

Posted by John Bennett in The Polar Blog on Tuesday, May 24, 2016

The landscape around Cambridge Bay, Nunavut, where entomologist Elyssa Cameron conducts her study of Arctic arthropods. (Courtesy Elyssa Cameron​​)

The North’s most iconic wildlife, such as polar bears, caribou and snowy owls, could not survive without the smallest and least familiar of the region’s creatures. And while they’re not well understood, insects and spiders (arthropods) are hugely important, says Arctic entomologist Elyssa Cameron.

“They’re pollinators, carnivores, herbivores and decomposers,” she says. “They keep the ecosystem producing and recycling the nutrients that Arctic plants and animals depend on.” But even basic information ...

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How breeding bottom feeders will help revolutionize fish farming

Posted by Nick Walker in Nature on Thursday, May 19, 2016

A northern orange-footed sea cucumber feeding at the St. Andrews Biological Station (Gif courtesy Shawn Robinson and Terralynn Lander/Fisheries and Oceans Canada​​)

It took them three years to get the conditions just right, but marine biologists at New Brunswick’s St. Andrews Biological Station (SABS) finally got their northern orange-footed sea cucumbers to breed in early May.

“Everyone has their cues for spawning,” says Shawn Robinson, a research scientist at the Fisheries and Oceans Canada facility on the Bay of Fundy. “We were keeping them inside, exactly mimicking natural conditions, but they weren’t having any of it.”

Yet when the frigid cucumbers ...

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Museum of Nature unveils new dinosaur species

Posted by Vanessa Hrvatin in Nature on Wednesday, May 18, 2016

Dr. Jordan Mallon of the Canadian Museum of Nature poses with the skull of "Judith," a new species of dinosaur he helped identify from fossils found in Montana. (Photo: Vanessa Hrvatin/Canadian Geographic)

Dr. Bill Shipp wasn’t expecting to discover a new dinosaur species the first time he went fossil hunting. But it turns out he did just that.

The fossils that Shipp stumbled across near his home in Montana have now been identified as a new species of horned dinosaur called spiclypeus shipporum — nicknamed "Judith" after the Judith River near where the fossils were found. The international research team that studied the dinosaur was led by Canadian Museum of Nature scientist Dr. Jordan Mallon, ...

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8 of our favourite Canadian museums

Posted by Alexandra Pope in History on Wednesday, May 18, 2016

How do you choose a favourite museum? The Museum of Nature in Ottawa, Ont., pictured, is popular with Canadian Geographic's editors. Read on for more of our picks! (Photo: Monica Healy/Can Geo Photo Club)

Each year on May 18th, museums and galleries around the world celebrate International Museum Day.

Started in 1977 by the International Council of Museums, International Museum Day is a movement aimed at encouraging people to spend more time exploring the vast realms of history, culture, art and science.

In honour of Museum Day 2016 — the theme of which is "Museums and Cultural Landscapes" — the editors of Canadian Geographic have shared their favourite museums in Canada. Tweet us your picks ...

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Scientists discover how monarch butterflies navigate

Posted by Rachael Kelly in Nature on Friday, April 15, 2016

Monarch butterflies in their winter refuge in Morelia, Mexico. (Photo: gailfisher/Wikimedia Commons)

Scientists, biologists and mathematicians have built a model circuit to simulate the internal compass mechanisms monarch butterflies use to navigate the 4,000 km journey from Canada to Mexico each year. The model takes into account the two cues butterflies use for migratory navigation: the horizontal position of the sun and time of day.

In June 2014, scientists at the University of Massachusetts Medical School and Worcester Polytechnic Institute identified a sort of solar compass in the antennas ...

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