科学与环境
97-million-year-old fossils reveal the earliest known animal “GPS”
来源: All Top News -- ScienceDaily · 发布于
Mysterious 97-million-year-old magnetic fossils may be the oldest evidence of an animal using Earth’s magnetic field like a built-in GPS. Their sophisticated magnetic structure could have helped an unknown ocean creature navigate thousands of kilometers with surprising precision.
Mysterious 97-million-year-old magnetic fossils may be the oldest evidence of an animal using Earth’s magnetic field like a built-in GPS. Their sophisticated magnetic structure could have helped an unknown ocean creature navigate thousands of kilometers with surprising precision.
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This 245-million-year-old fossil still has its stomach and intestines
A 245-million-year-old marine reptile fossil preserves an astonishing amount of detail, including its stomach, liver, and intestines. The discovery reveals that Austronaga minuta was highly adapted for swimming even though its digestive system remained surprisingly simple.
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Why Great Plains rivers depend on wetlands as well as climate
When a prairie river carries more water in one year than another, the obvious place to look for an explanation is the sky. A year with more snow and rain should have more water in rivers. That was also how I initially thought about year-to-year changes in river flow. But while st
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A forgotten 30-year forest experiment just delivered a huge surprise
A 30-year forestry experiment in Australia found that heavily thinned mountain ash forests grew unusually large trees while recovering enough carbon to match or exceed untouched areas. The results suggest carefully managed thinning could support timber production, wildlife habita
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Chang’e-6 lunar soil contains a surprising magnetic time capsule
Scientists studying Chang’e-6 lunar soil have discovered a previously unknown magnetic mineral in natural Moon samples: a form of metallic iron called γ-Fe. Found inside tiny impact-glass particles, the nanoscale iron can preserve a stable magnetic signal, potentially acting like
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Could El Niño mean there are no Atlantic hurricanes this year?
For the first time in three decades there has not been a single Atlantic hurricane in September, normally the most active month.
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