Traces of sex hormones extracted from a woolly mammoth's tusk provide the first direct evidence that adult males experienced musth, a testosterone-driven episode of heightened aggression against rival males, according to ...
Plants & Animals
May 3, 2023
0
119
A wide variety of animals have tusks, from elephants and walruses to five-pound, guinea pig-looking critters called hyraxes. But one thing tusked animals have in common is that they're all mammals—there are no known fish, ...
Evolution
Oct 26, 2021
1
450
An international research team has retraced the astonishing lifetime journey of an Arctic woolly mammoth, which covered enough of the Alaska landscape during its 28 years to almost circle the Earth twice.
Paleontology & Fossils
Aug 12, 2021
0
1040
The discovery of stone tools found in a Florida river show that humans settled the southeastern United States far earlier than previously believed—perhaps by as much as 1,500 years, according to a team of scientists that ...
Archaeology
May 13, 2016
27
1363
(PhysOrg.com) -- The 2008 excavations at Hohle Fels Cave in the Swabian Jura of southwestern Germany recovered a female figurine carved from mammoth ivory from the basal Aurignacian deposit. This figurine, which is the earliest ...
Archaeology
May 13, 2009
2
2
Researchers have linked the travels of a 14,000-year-old wooly mammoth with the oldest known human settlements in Alaska, providing clues about the relationship between the iconic species and some of the earliest people to ...
Ecology
Jan 17, 2024
0
76
The first person to spot it was a shovel operator working the overnight shift, eyeing a glint of white as he scooped up a giant mound of dirt and dropped it into a dump truck.
Paleontology & Fossils
Jan 7, 2024
0
120
A team led by scientists at the University of Washington and special agents with the U.S. Department of Homeland Security has used genetic testing of ivory shipments seized by law enforcement to uncover the international ...
Ecology
Feb 14, 2022
0
50
In the Arctic, climate change and pollution are the biggest threats to top predators like narwals. Studying the animals' tusks reveals that diet and exposure to pollution have shifted over the past half century in response ...
Plants & Animals
Mar 29, 2021
0
125
Every year, a new growth layer is added to the narwhal's spiraled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental ...
Ecology
Mar 11, 2021
0
70
