North America

Butterfly swarm shows up on Denver radar system

A colourful, shimmering spectacle detected by weather radar over the US state of Colorado has been identified as swarms of migrating butterflies.

06 October 2017

Das ist kein Sturm - sondern eine Schmetterlingswolke

Ein US-Meteorologe starrt ungläubig auf seinen Bildschirm - weil er dort eine riesige Wolke sieht. Eine Wolke aus Lebewesen. Er wird Zeuge einer faszinierenden Wanderung.

05 October 2017

Grey seal population growing, but not nearly as much as in recent decades

Population growth has slowed to about 4 per cent annually, down from decades of 13 per cent increases

05 October 2017

Climate change affecting whooping cranes' migration patterns, study finds

Endangered whooping cranes are migrating earlier in the spring and later in the fall in association with higher average temperatures, according to a new study from the University of Nebraska-Lincol

29 September 2017

Uncertain future of the North Atlantic right whale linked to its tiny prey

Right whales move into more hazardous waters as they pursue a dwindling food source, research suggests

21 September 2017

Save our bats, belugas and bobolinks: Editorial

According to the World Wildlife Fund Canada, 451 of 903 mammal, bird, reptile, amphibian and fish species across the country have declined in number by a shocking average of 83 pe

18 September 2017

Half of Canada's monitored wildlife is in decline, major study finds

New report paints a bleak picture for wildlife in a country that is home to a quarter of the Earth’s wetlands, 8,500 rivers and more than 2m lakes

15 September 2017

Naturwunder könnte bald für immer verschwunden sein

Die Bestände des westlichen Monarchfalters sind dramatisch geschrumpft, in wenigen Jahrzehnten könnte es mit ihm vorbei sein.

13 September 2017

Monarch Butterfly Could Be At Risk Of Extinction

A new research finds that the number of monarch butterflies in North America has significantly dwindled in the last three decades. Are these butterflies in danger of extinction?

08 September 2017

Accidental deaths of endangered North Atlantic right whales threaten species’ survival

At least 12 whales have died since April — or about 2 per cent of the population — nearly all of them in the Gulf of St. Lawrence.

15 August 2017