Jul 10, 2025 by News Staff

Paleontologists have retrieved ancient enamel protein sequences from a fossilized tooth of Epiaceratherium sp., a rhinocerotid that lived in Canada’s...

May 30, 2025 by News Staff

Polar ecosystems are structured and enriched by birds, which nest there seasonally and serve as keystone ecosystem members. Despite the ecological importance...

May 9, 2025 by News Staff

Paleontologists have found the fossils of three new fish species — including the earliest known salmonid fish, Sivulliusalmo alaskensis — at...

Feb 20, 2025 by Enrico de Lazaro

Palm trees of the tribe Trachycarpeae once thrived in what is now subarctic Canada, according to an analysis of fossilized phytoliths — microscopic...

Jan 7, 2025 by News Staff

Researchers have examined three ice core records to identify lead pollution levels in the Arctic between 500 BCE through 600 CE. Lead isotopes allowed...

Apr 9, 2024 by Enrico de Lazaro

Bergmann’s rule is a scientific principle stating that animals in high-latitude, cooler climates tend to be larger than close relatives living in warmer...

Dec 12, 2023 by Enrico de Lazaro

Frostquakes are seismic events with frequencies of about 10-20 Hz and waveforms like those of tectonic events. They potentially can damage infrastructures...

Aug 10, 2023 by News Staff

A new genus and species of eutherian mammal has been described from a handful of tiny teeth found in the Prince Creek Formation in northern Alaska, the...

Apr 10, 2023 by News Staff

In new research, scientists analyzed 23 ancient genomes of woolly mammoths (Mammuthus primigenius), including one of the oldest known specimens at 700,000...

Mar 28, 2023 by News Staff

With ongoing carbon dioxide emissions from the burning of fossil fuels, the atmosphere of Earth heats up, which has dramatic consequences for the ice sheets....

Mar 13, 2023 by Enrico de Lazaro

Paleontologists from Uppsala University and the University of Oslo have found the 250-million-year-old fossilized ichthyosaur remains in the Vikinghøgda...

Jan 27, 2023 by News Staff

Paleontologists have described two new species of the early primatomorphan genus Ignacius from Ellesmere Island, Nunavut, Canada. Life reconstruction of...

Dec 8, 2022 by Enrico de Lazaro

Researchers have analyzed microscopic fragments of 2-million-year-old environmental DNA from of the Kap København Formation in Greenland. The DNA record...

Jul 20, 2022 by News Staff

Qikiqtania wakei closely resembles Tiktaalik roseae — the important transitional animal considered a missing link between fish and the earliest limbed...

Mar 28, 2022 by News Staff

New research published in the American Museum Novitates is the first to document biofluorescence in Arctic fishes. A juvenile variegated snailfish (Liparis...

Oct 20, 2021 by News Staff

In a large-scale environmental DNA metagenomic study of ancient plant and mammal communities, an international team of researchers have analyzed 535 permafrost...

Aug 13, 2021 by News Staff

Scientists have examined isotopes collected from the tusk of a woolly mammoth (Mammuthus primigenius) that lived in Alaska approximately 17,100 years ago,...

Jun 30, 2021 by News Staff

A team of paleontologists from the University of Alaska Fairbanks and Florida State University has uncovered the first convincing evidence that several...

Jun 9, 2021 by News Staff

Microscopic multicellular animals called bdelloid rotifers are known for their ability to survive extremely low temperatures. They had been reported to...

Mar 9, 2021 by News Staff

Millions of migratory birds occupy seasonally favorable breeding grounds in the Arctic, but scientists know little about the formation, maintenance and...