Study finds that dinosaurs were in decline even before extinction

BeijingA study of fossilized eggs in China suggests that dinosaurs were not very diverse and generally declined even before their extinction nearly 66 million years ago.

The long-term decline in global dinosaur diversity and the continued decline in the number of their species over the past few million may have been caused by climate variability and massive volcanic eruptions from Deccan Traps in IndiaThe researchers said.