Jason Bittel

2 weeks ago | nationalgeographic.fr | Jason Bittel |Martin Surbeck

Leur solution pour monter en hiérarchie et se faire respecter des mâles, souvent agressifs ? Unir leurs forces. Publication 29 avr. 2025, 10:35 CESTPourquoi les femelles bonobos ont-elles des positions plus élevées dans leur société que les mâles, là où l’inverse est vrai chez la plupart des mammifères sociaux, comme leurs proches cousins, les chimpanzés ? C’est la question à laquelle Martin Surbeck et ses collègues souhaitaient répondre.

3 weeks ago | nationalgeographic.com | Martin Surbeck |Jason Bittel

Why do female bonobos often outrank males, especially when the opposite is true for most social mammals, like their close relative the chimpanzee? That’s the question Martin Surbeck and his colleagues wanted to answer. And after monitoring six communities of bonobos in the Democratic Republic of the Congo for nearly three decades, they have arrived at a conclusion.

3 weeks ago | nationalgeographic.com | Jason Bittel

Spend enough time in nature, and you will see some weird stuff—from orcas swimming around wearing salmon like hats to wombats pooping cubes. But when Rochelle Constantine saw a nine-foot-long mako shark jet past her research vessel in the Hauraki Gulf off New Zealand with a huge, orange octopus globbed onto its head, she knew she was witnessing something new. “It was just one of those lucky days,” says Constantine, a marine ecologist at the University of Auckland in New Zealand.

1 month ago | cen.acs.org | Jason Bittel

Everybody knows Girl Scout cookies contain fat and sugar, because, well, they're cookies. But an analysis released in December, commissioned by consumer advocacy nonprofits GMOScience and Moms Across America, makes a bolder claim. In a self-published article, the groups contend that Girl Scout cookies contain an "extremely concerning" level of "toxic contaminants"-including glyphosate, a widely used pesticide; aluminum; mercury; cadmium; and lead.

1 month ago | nationalgeographic.fr | Jason Bittel |David Doubilet

Une nouvelle découverte scientifique révèle que les crocodiles américains (Crocodylus acutus) femelles peuvent donner naissance à une progéniture sans l’intervention d’un mâle, un phénomène connu sous le nom de parthénogenèse facultative, ou « naissance vierge ».