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Tags Paleoclimate

Tag: Paleoclimate

Ancient shark teeth lost in Antarctica millions of years ago recorded...

Sora Kim, University of California, Merced Tens of million years ago, sand tiger sharks hunted in the waters off...

The Arctic hasn’t been this warm for 3 million years –...

Julie Brigham-Grette, University of Massachusetts Amherst and Steve Petsch, University of Massachusetts Amherst Every year, sea ice cover in the Arctic Ocean shrinks to a...

New evidence that an extraterrestrial collision 12,800 years ago triggered an...

Christopher R. Moore, University of South Carolina What kicked off the Earth’s rapid cooling 12,800 years ago? In the space of just a couple of years,...

Last of the giants: What killed off Madagascar’s megafauna a thousand...

Nick Scroxton, University of Massachusetts Amherst; Laurie Godfrey, University of Massachusetts Amherst, and Stephen Burns, University of Massachusetts Amherst Giant 10-foot-tall elephant birds, with eggs...

Volcanic eruptions once caused mass extinctions in the oceans – could...

Jeremy D. Owens, Florida State University and Theodore R. Them II, College of Charleston All animals, whether they live on land or in the water,...

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It takes a global village: how we got ahead in HIV...

By William Bowtell When AIDS first emerged in the early 1980s, HIV infection was a death sentence. But a global effort has ensured this is...