Chinese paleontologists have discovered two relatively complete and closely adjacent dinosaur skeleton fossils in North China's Inner Mongolia Autonomous Region, which have been identified as a new ...
This is due to fluctuations in the hormones estrogen and progesterone that take place during this transition phase before menopause. During perimenopause, your period may also start earlier or later ...
Until now, Antarctica was the only continent on Earth without any known amber fossils. But sediment cores taken from below the seafloor have revealed a tiny piece of fossilized resin holding fragments ...