image: The sand dollar Mellitella stokesiiview more Credit: Rich Mooi (CC BY 4.0) New insight on the origins and early evolution of echinoids, a group that includes the sea urchins, the sand dolla… [+6394 chars]
WHY GO TO all the trouble of designing and building a drone if nature has already done most of the job for you? That is the attitude taken by the small but determined band of researchers who are tryi… [+2827 chars]
Tiny flecks of white dot a section of crumbly rocks along Texas's Brazos River. To a casual observer, the grains may seem like unremarkable bits of sand, but within their oddball shapes lie clues to … [+8057 chars]
