Scientists say the dinosaur died during the impact 66 million years ago.
A keyhole-shaped lesion found in the frill of Big John, the largest Triceratops skeleton ever found, may have been made by a rival Triceratops.
Scientists have crafted a new message for intelligent extraterrestrials
Cancer can affect any part of the body, requiring doctors to employ robust methods such as MRI scans, blood tests and computed tomography to detect and classify it.