The extinction of the dinosaurs from space rock is possibly the most famous of all mass extinctions. This ~12 km wide asteroid, about twice as tall as Kilimanjaro, impacted a reef off the coast of the Yucatán peninsula and caused tsunamis, earthquakes, and seiches. Molten... click to read more

In his novel Jurassic Park, Michael Crichton envisioned dinosaurs being cloned using DNA from the blood inside ancient mosquitoes preserved within amber. Amber is a fossilized tree resin (not sap) that often contains plant and animal remains and protects them from many forms of decay.... click to read more

Sauropod dinosaurs, large herbivores with long neck and tail, include the largest terrestrial animals that ever inhabited the Earth such the giant titanosaur Patagotitan, or the colossal diplodocid Diplodocus. However, some groups of sauropods were not necessarily characterized by their size but by other anatomical... click to read more