Largest Spider Fossil Found in Volcanic Ash
Largest Spider Fossil Found in Volcanic Ash

Fossil female golden orb-weaver spider (Nephila jurassica) from the Middle Jurassic of China. Credit: Paul Selden. The biggest known...

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The Largest Tyrannosaurus Rex Ever Discovered
The Largest Tyrannosaurus Rex Ever Discovered

© iStock/oversnap Paleontologists have discovered the biggest Tyrannosaurus rex fossil yet found, according to a new study. The fossi...

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In Diamonds' Flaws, Finding the Secret History of Continents
In Diamonds' Flaws, Finding the Secret History of Continents

A raw diamond from Sierra Leone with sulfur-containing mineral inclusions. The longevity of Earth's continents in the face of de...

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Second-Biggest Diamond in History Found
Second-Biggest Diamond in History Found

The 1,758-carat diamond found in Botswana. Source: Lucara Diamond Corp. A giant 1,758-carat diamond, the second-biggest ever discover...

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Earthquakes Happen Every 3 Minutes in Southern California, Study Shows
Earthquakes Happen Every 3 Minutes in Southern California, Study Shows

The San Andreas Fault system, which stretches more than 800 miles in California, causes a powerful earthquake about every 150 years...

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New Species of Giant Fossil Carnivore Found in Kenya
New Species of Giant Fossil Carnivore Found in Kenya

Simbakubwa kutokaafrika, an extinct hyaenodont, with a skull as large as that of a rhinoceros and enormous piercing canine teeth, would h...

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"Ridiculously Rare" Gemstones Found in Northern Canada
"Ridiculously Rare" Gemstones Found in Northern Canada

Vivid blue spinel with white carbonate in calc-silicate rock, Kimmirut area (Philippe Belley) and a cobalt-blue spinel gemstone, Kimmirut...

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Visitor Uncovers 1.5-carat Diamond in Arkansas Park
Visitor Uncovers 1.5-carat Diamond in Arkansas Park

A Crater of Diamonds State Park visitor found a 1.52-carat diamond on April 2, 2019. It's believed to be the largest find so far in 2...

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Four-legged Whale With Hooves Fossil Discovered
Four-legged Whale With Hooves Fossil Discovered

Artistic Reconstruction of Four-legged Whale. Credit: A. Gennari Fossil find: Whale with legs could stand on land and swim in water...

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What Is Grape Agate?
What Is Grape Agate?

Grape Agate, or Purple Chalcedony from Indonesia Photo: Amarisland Grape Agate gemstone is a relatively new find. Although the trad...

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66-Million-year-old Deathbed Linked to Dinosaur-Annihilating Meteor
66-Million-year-old Deathbed Linked to Dinosaur-Annihilating Meteor

A group of fish fossils from the Tanis surge deposit. Credit: Courtesy of Robert DePalma Fossils discovered from the day the dinosau...

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California Should Have Had a Major Earthquake by Now, Geologists Warn
California Should Have Had a Major Earthquake by Now, Geologists Warn

California Seismic Hazard Map, USGS There have been no major ground rupturing earthquakes along California's three highest slip r...

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