FOR MANY YEARS, scientists believed turtles to be voiceless. But now we know there are more than 45 species of turtles that can vocalize — and University of Toronto researchers are eavesdropping on some chatty snapping turtle hatchlings. They found the turtles made a variety of noises, from clicks and squeaks to a kind of fart sound while still in the egg — and that the vocalizations became progressively more complex as the hatchlings broke their way through their eggshells and started to emerge from their nests. It’s hypothesized that the sounds are cues for the other hatchlings to get moving so they all hatch at once (and thus are less likely to be picked off by predators).
Social dilemma
Bu hikaye Canadian Geographic dergisinin Canadian Geographic July/August 2021, Vol. 141, No. 4 sayısından alınmıştır.
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Bu hikaye Canadian Geographic dergisinin Canadian Geographic July/August 2021, Vol. 141, No. 4 sayısından alınmıştır.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Giriş Yap
ANIMAL XING
THIS PAST SUMMER AN AMBITIOUS WILDLIFE UNDER/OVERPASS SYSTEM BROKE GROUND IN B.C. ON A DEADLY STRETCH OF HIGHWAY JUST WEST OF THE ALBERTA BORDER. HERE’S HOW IT HAPPENED.
Unearthing a giant
Almost 30 years ago, paleontologist Elizabeth “Betsy” Nicholls made a discovery of colossal proportions
WE DID THIS
AS THE IMPACTS OF GLOBAL WARMING BECOME INCREASINGLY EVIDENT, THE CONNECTIONS TO BIODIVERSITY LOSS ARE HARD TO IGNORE. CAN THIS FALL’S TWO KEY INTERNATIONAL CONFERENCES POINT US TO A NATURE-POSITIVE FUTURE?
The COOLEST COUNTRY
“The coolest country” celebrates the wonders of winter with an all-Canadian theme. The 20-page travel planner includes a bucket list from travel writer Robin Esrock, steamy spa ideas, ice fishing destinations, festival fun, northern itineraries and more!
KEEPER of the SEA
FROM BEING LABELLED DEVIL’S APRON BY FRUSTRATED FISHERMEN TO BEING LAUDED AS A SUSTAINABLE FOOD SOLUTION: HOW KELP’S POTENTIAL IS BEING REALIZED, JUST AS SCIENTISTS LEARN IT’S DECLINING
WILD THINGS
WILD CANADIAN GEOGRAPHIC PRESENTS THE WINNERS OF ITS ANNUAL CANADIAN WILDLIFE PHOTOGRAPHY OF THE YEAR COMPETITION
AN EMPTY LANDSCAPE
AFTER MORE THAN A MILLION YEARS ON EARTH, CARIBOU ARE UNDER THREAT OF GLOBAL EXTINCTION. THE PRECIPITOUS DECLINE OF THE ONCE MIGHTY HERDS IS A TRAGEDY THAT IS HARD TO WATCH — AND EVEN HARDER TO REVERSE.
NORTHERN EXPOSURE
BON INTO A CARIBOU-HUNTING CREE FAMILY IN NORTHERN MANITOBA, ACCLAIMED PLAYWRIGHT AND NOVELIST. TOMSON HIGHWAYS PAYS TRIBUTE TO THE MAGICAL WORLD OF HIS CHILDHOOD IN PERMANENT ASTONISHMENT
INTO THE ARCTIC
CANADIAN PAINTER AND FILMMAKER CORY TRÉPANIER EXPLORES THE SUBLIME AND RAPIDLY CHANGING CANADIAN ARCTIC
Under the ice
Until the last decade, we knew little about what lay beneath the Arctic ice. Now scientists and explorers are shedding light on this vanishing world.
