A chunk of rock that had been buried in the ground for millions of years has become a new clock for understanding Earth's rotation. Analysis of a fossilized Cretaceous-era bivalve shell has revealed that our planet's days were half an hour shorter 70 million years ago.
Ancient shell reveals how much shorter days were 70m years ago
Scientists have discovered that rats have adapted to modern human life, even adapting their diets to the cities they live in.
Changes to rat DNA reflects adaptation to modern human life
The Australian privacy regulator filed a lawsuit against Facebook Inc. accusing the social media giant of sharing the personal details of more than 300,000 people with political consultant Cambridge Analytica without their knowledge.
Australia sues Facebook, alleges breach of user data
When NASA's Insight lander set down on Mars in November of 2018, it began its two-year primary mission of studying Mars' seismology and interior environment.
Magnetic fields around Mars Insight lander 10 times stronger than expected
Immobile populations of Earth's earliest animals may have been connected by long filaments in a 500 million-year-old example of a social network, scientists say.
A 'social network' may have connected immobile sea creatures
Time, as far as we know, moves only in one direction. But in 2018, researchers found events in some gamma-ray burst pulses that seemed to repeat themselves as though they were going backwards in time.
Faster-than-light speeds could be why gamma-ray bursts seem to go backward in time
Something in the universe is creating more mass than we can detect directly. We know it's there because of its gravitational effect on the stuff we can detect; but we don't know what it is, or how it got here.
There might be a new dark matter candidate: Physicists
Dogs have a type of infrared sensor in the tip of their nose which enables them to detect minute changes in temperature such as when other animals are nearby, according to new research.
Dogs can detect heat with 'infrared sensor' in their nose: Study
From humans to black-tailed prairie dogs, female mammals often outlive males – but for birds, the reverse is true.
Mystery of lifespan gap between genders may be solved: Researchers
Until now, archaeozoologists have been unable to reconstruct the earliest stages of domestication: The process of placing wild animals in captivity remained beyond their methodological reach.
Wild boars provide archeologists with clues to early domestication

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