tracks
laelaps | June 8, 2010
Welcome Maryn McKenna and her blog Superbug to Sb! And, in case I forgot to mention it before, make sure to check out Deborah Blum's blog Speakeasy Science, too!Wildlife experts use civetone-containing cologne to lure big catsIn a scene reminiscent of the ending of Kingdom of the Spiders, caterpillars blanket the English countryside with webs.Coming soon, Inside Nature's Giants, series two.John Lynch shares the introduction to Follies of the Present Day: Scriptural Geology from 1817 to 1857.So you want to be a scientist? Learn to write!How to make a blockbuster - the creative process behind…
edyong | August 18, 2009Several million years ago, at a time when dinosaurs walked the earth, a flying reptile - a pterosaur - came in for a landing. As it approached, it used its powerful wings to slow itself down and hit the ground feet first. It took a short hopping step before landing a second time. On solid ground, it leant forward, put its arms down and walked away on all fours.
The landing made quite an impression on the underlying limestone mud and in the following millennia, the creature's tracks became fossilised. Now, they have been unearthed by Jean-Michel Mazin from the University of Lyon at a site…
laelaps | October 30, 2007The sculpted skull of the AMNH Deinonychus mount.For nearly as long as I can remember, artistic depictions of Deinonychus and related dromeosaurs have featured the dinosaur as a pack hunter, often pouncing on a hapless ornithischian like Tenontosaurus (see here, here, here, and here for examples). After being confronted with such imagery time and time again I didn't think twice about the pack-hunting behavior in Deinonychus as a kid, but I started to wonder on what evidence all these gory illustrations were based. The popular books in my own library treated the behavior as a fact and gave no…
laelaps | October 14, 2007In 1978, a paleoanthropological team including Mary Leakey, Richard Hay, and Tim White made a startling discovery at Laetoli, Tanzania; in a bed of volcanic ash that would later be dated to about 3.5 million years old were the footprints of ancient hominids. The preserved trackway, found to contain the footprints of three individuals of the same species walking in the same direction during a very short period of time (possibly walking together as a group), would become one of the most important and iconic of hominid fossils, the fact that hominids were walking upright 3.5 million years ago…