'caused by impotency'|
A Chinese scholar claims dinosaurs became extinct
because the males became impotent.
Climate and geological changes towards the end of the
Cretaceous Period 65 million years ago resulted in the terminal
infertility of male dionosaurs, according to geo-scientist Yang
His theory has been accepted by a number of renowned
geologists and palaeontologists in China's Guangzhou province.
Mr Yang's theory is based on the fact that many
well-preserved dinosaur egg fossils were found in the Xixia basin in
central Henan province. The egg fossils found in the area far outnumber
fossils of fully grown dinosaurs.
He believes that dry weather during the Cretaceous
Period caused water levels in lakes to drop, leading to higher
concentrations of salt and minerals in the water. The large amounts of
minerals, especially sulphates, damaged the reproductive systems of
dinosaurs that drank from the lakes the Straits Times