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Earth back issues
Getting the dirt on land life: fossilized soil holds first land grabbers.(Brief Article)
August 1, 1998... Fossilized soil holds first land grabbers. Jens Gutzmer and Nicolas J. Beukes were seeing red: pebbles of rust-colored hematite, an iron-rich mineral scattered throughout the two-billion-year-old South African dirt. But as they looked a little closer, they noticed that the topmost soil...
Buried treasures.(high-grade copper found on Pacific Ocean floor)(Brief Article)
August 1, 1998... Digging below the hot-water vents and strange sea creatures that mark the dark depths of the Pacific Ocean floor, geologists have struck upon a bright new discovery: a rich zone of high-grade copper. This unexpected deep-sea treasure could point the way to similar valuable deposits on dry...
At the drop of a worm.(ancient worm droppings challenge theory of Cambrian explosion of life)(Brief Article)
August 1, 1998... Digested meals mark an early start for guts. Six hundred million years ago a worm left its mark in the seafloor: a winding trail of tiny pellets it had tidily deposited after enjoying a good meal. Scientists have long thought that animals with the guts to leave such a trail didn't live...
Dating real jerks.(lichens reveal prehistoric earthquake record)(Brief Article)
August 1, 1998... Fungus coatings on rock pin down quake ages. Rock-loving lichens seem an unlikely storehouse for earthquake information. But two geologists are using these tiny plants to reveal the prehistoric record of major tremors. And this novel approach is changing what we know about earthquake...
Small beginnings: pint-sized primates show our ancestors' ancestors got started in Asia.(primate fossils found in China)(Brief Article)
August 1, 1998... Pint-sized primates show our ancestors' ancestors got started in Asia. They were shorter than your pinky, lighter than a golf ball, and equipped with a bottomless pit for a stomach. Recently discovered, the forty-five-million-year-old bones of the smallest primates ever known could shed...