科学与环境
The stubby legs of ancient sled dogs helped people traverse the Arctic for the past 9,000 years
来源: Phys.org - latest science and technology news stories · 发布于
For centuries, dogs have helped people travel across the Arctic, hauling supplies, equipment and other goods through snowy landscapes where other domesticated animals struggled to venture. Now, a new study publishing Oct. 14 in the journal iScience finds that sled dogs might have
For centuries, dogs have helped people travel across the Arctic, hauling supplies, equipment and other goods through snowy landscapes where other domesticated animals struggled to venture. Now, a new study publishing Oct. 14 in the journal iScience finds that sled dogs might have evolved shorter legs that helped them pull loads more efficiently.
相关报道
Storing memory on a chip with flowing water
Like the folds in crumpled sheets or the footprints on recently trodden sand, certain materials mark their histories. Now, Yale researchers show that networks of flowing water and other fluids can store their own memories—similar to how a computer chip does—an innovation that cou
Phys.org - latest science and technology news stories ·
Sustained pressure halts cancer cell migration and triggers death in 3D lab models
The growth and death of cancer cells in the lab are studied primarily in two-dimensional cell cultures. In a study published in the journal Developmental Cell on Oct. 14, researchers instead used three-dimensional models to uncover how pressure and mechanical confinement impact c
Phys.org - latest science and technology news stories ·
Scientists may have overlooked a hidden Alzheimer's culprit for decades
For decades, scientists have focused on amyloid beta as a major culprit behind Alzheimer’s disease, spending billions of dollars developing treatments that have often delivered disappointing results. Now, researchers at UC Santa Cruz are drawing attention to a largely overlooked
All Top News -- ScienceDaily ·
Europe's new Sentinel-3C satellite just sent back spectacular images of Earth
Europe's Sentinel-3C satellite has returned breathtaking images of Earth just two weeks after launch, revealing the snowy Alps, frozen Arctic islands, and brilliant turquoise Caribbean waters. Its first measurements also show promising results for tracking rising seas, melting ic
All Top News -- ScienceDaily ·
'In his words, he's ready to go ': Can Shohei Ohtani break his slump before it's too late?
An ailing Ohtani will remain in the Dodgers' lineup, but L.A. needs him to get his groove back. Now.
espn.com ·