Billions of T. rex likely roamed the Earth, paleontologists report
Science News The iconic predator’s estimated abundance means the T. rex fossils we have today are exceedingly rare. ByMichael Greshko Published April…
Science News The iconic predator’s estimated abundance means the T. rex fossils we have today are exceedingly rare. ByMichael Greshko Published April…
Periodical cicadas emerge from underground in the spring of their 13th or 17th year. Fifteen US states are about to see a…