Back in 2005, Mary Schweitzer, a paleontologist at North Carolina State University, announced that she and colleagues had found “soft tissue” in the 68-million-year-old fossilized thighbone of a Tyrannosaurus rex. Not only was the tissue intact, Schweitzer reported, but it was still transparent, still pliable and contained microscopic structures that looked an awful lot like blood vessels and cells.

PAISLEY, Ore. – For some 85 years, homesteaders, pot hunters and archaeologists have been digging at Oregon's Paisley Caves, a string of shallow depressions washed out of an ancient lava flow by the waves of a lake that comes and goes with the changing climate.

An enormous tsunami may have been the source of a line of huge boulders, up to 1,750 tons each, on the Polynesian island of Tongatapu. University of Texas researchers report the boulders match the coral reef offshore. They likely were flung to shore within the past few thousand years.