Buried "megaripples" — some the size of five-story buildings — are helping scientists piece together the devastation following the impact that wiped out the nonavian dinosaurs.
As a high school biology teacher in Louisiana I really feel the pain of that survey. My district spends a lot of time on evolution, but it only goes so far with the kids if their parents are against it.
As a high school biology teacher in Louisiana I really feel the pain of that survey. My district spends a lot of time on evolution, but it only goes so far with the kids if their parents are against it.