科学与环境
Ancient underwater canyons reveal clues to the world's oldest animal life
来源: Phys.org - latest science and technology news stories · 发布于
Geologists have uncovered new evidence that dramatic sea-level changes carved giant underwater canyons in South Australia's Flinders Ranges hundreds of millions of years ago, helping to create conditions that preserved some of the earliest complex life on Earth. The findings, led
Geologists have uncovered new evidence that dramatic sea-level changes carved giant underwater canyons in South Australia's Flinders Ranges hundreds of millions of years ago, helping to create conditions that preserved some of the earliest complex life on Earth. The findings, led by Adelaide University, shed new light on the environmental changes that accompanied the rise of the mysterious Ediacaran biota.
相关报道
An ancient ocean full of giant predators reveals a surprising twist in evolution
A remarkable fossil discovery in Colombia is challenging how scientists understand major evolutionary changes in Earth's history. Researchers uncovered an incredibly diverse ancient marine ecosystem where giant reptiles, sharks, and other creatures thrived as older evolutionary g
All Top News -- ScienceDaily ·
A nuclear blast could save Earth from an asteroid, but there's a catch
A nuclear explosion might save Earth from a deadly asteroid, but new research suggests that hitting the wrong side could make the difference between success and disaster. Scientists found that an asteroid's irregular shape can dramatically affect how it responds to an X-ray blast
All Top News -- ScienceDaily ·
Scientists just found dinosaur blood that survived 115 million years
Scientists have discovered chemically confirmed traces of ancient blood inside 115-million-year-old dinosaur bones, challenging assumptions about how long biological molecules can survive. The extraordinary preservation could unlock new clues about dinosaur physiology and even he
All Top News -- ScienceDaily ·
NASA’s Swift telescope falls to Earth after nearly 22 years in space
After nearly 22 years of exploring the universe’s most violent explosions, NASA’s Swift Observatory has re-entered Earth’s atmosphere over Indonesia. Originally designed to last just two years, the pioneering space telescope transformed our understanding of black holes, exploding
All Top News -- ScienceDaily ·
Scientists may have finally explained why our brains and bodies are cross-wired
Scientists propose that the brain’s mysterious cross-wiring, which connects each hemisphere to the opposite side of the body, may have originated more than 500 million years ago in the visual systems of ancient fish. Rather than evolving for a specific advantage, this unusual arr
All Top News -- ScienceDaily ·