Springtime brought the death of the dinosaurs - study
The dinosaurs — and 75% of life on earth — were wiped out in the midst of spring, according to a new study.
An asteroid is shown in an artist's rendition crashing into Earth in an event that scientists believe occurred in the Caribbean region at the boundary of the Cretaceous and Tertiary periods in Earth's geologic history about 65 million years ago causing the extinction of dinosaurs. Updated: 
