The tissues of the MH7 fossil were so precisely preserved that researchers could study individual skin cells. In some samples, they could even visualize skin cell nuclei under the microscope.
About half a million years ago, several horses, sloths and armadillos fell into a sinkhole in Florida's Big Bend region and ...
Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which ...
Scientists have unearthed in southeastern China the fossil of a quail-sized bird that lived about 150 million years ago ...