In case you missed them, here's an encore performance of Modern Parenthood's top ten most-viewed stories. Click through to the end for a bonus track with the top 10 editors' picks for 2013.
A six-mile wide asteroid delivered the fatal blow to dinosaurs, who had already been struggling against a host of environmental threats. But what if the asteroid had missed Earth?
Climate change, changing sea levels, and volcanic activity severely undermined the environment for dinosaurs, even before a large impactor smashed into Earth, scientists say.
Renewed excavation of Wyoming's Natural Trap Cave promises to be a boon for scientists, armed with a capability for ancient DNA sequencing not available in 1984, the last time the cave was open to exploration.
Fossils unearthed in Siberia of a plant-eating dinosaur suggests that feathers were common among the ancient reptiles.
Some 70 million years ago, a trio of tyrannosaurs walked together across a mud flat in what is today Canada, leaving behind tracks that support the theory that these giant predators hunted in packs.
An exquisitely preserved fossil of a shrimplike predator from the Cambrian period has been unearthed in China.
Changyuraptor yangi, which had the longest feathers of any known dinosaur, lived in what is today modern China some 125 million years ago.
Researchers have described the largest 'four-winged' dinosaur known, gaining insights into how dinosaurs might have taken to the skies.
Herds of duck-billed dinosaurs in what is today Alaska's Denali National Park left behind 'one of the great track sites of the world.'
A fossil site in British Columbia has yielded its first ancient mammals, including a miniature tapir and a hedgehog smaller than a mouse.