Dinosaur extinction News
66 million years ago, an asteroid approximately 12 kilometers wide slammed into Earth.
An asteroid impact behind elimination of dinosaurs is also responsible for cooling the Earth.
It released climate-altering sulphur and cooled the Earth far more than originally thought.
According to a new study, our ancestors evolved three times faster in the 10 million years after the extinction of the dinosaurs than in the previous 80 million years.
The team studied the early evolution of placental mammals, the group including elephants, sloths, cats, dolphins and humans.
The discovery of a new fossil has given scientists an insight into how rodent-like mammal survived extinction of dinosaurs.
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