Charles Q. Choi
Author Articles
Recent observations at high temperatures and extreme pressures tantalize, but not all experts are convinced.
New research points to when massive asteroid impact happened, and why only some animals survived.
Scientists found that squirrels extract nitrogen from their urea to make proteins.
The aerial acrobat is less than half a millimeter long.
The kunga, a highly sought-after technological advance in Mesopotamia, may be the oldest known hybrid animal bred by humans.
The findings suggest current theories of how some volcanoes form may be too simple.