Earliest animal footprints found in China: studyThe earliest known footprints left by an animal on Earth, dating back at least 541 million years, have been uncovered in China, a study said Wednesday. Why birds don't have teethWhy did birds lose their teeth? Was it so they would be lighter in the air? Or are pointy beaks better for worm-eating than the jagged jaws of dinosaur ancestors? Fossilised Rhinoceros philippinensisFossilised bones of a Rhinoceros philippinensis dating back 709,000 years ago, excavated in northern province of Kalinga, are displayed at the national museum of natural history in Manila on May 10, 2018. How does a one-tonne dino hatch its eggs? CarefullyMost dinosaurs buried their eggs and hoped for the best, but some species -- including a few hefty ones -- built nests and pampered unhatched offspring much as birds do today, researchers reported Wednesday. California becomes first US state to require solar on new homesCalifornia on Wednesday became the first US state to require solar panels on all new residential buildings as part of efforts to cut greenhouse gas emissions. IN PICTURES -- Thai man arrested trying to sell dinosaur fossilsBANGKOK, Feb 25 (AFP) - A Thai man has been arrested for trying to sell fossils of dinosaurs up to 200 million years old to police posing as artifact buyers in a major sting operation, police and diplomats said Friday.
