Reports continue to show that vital cell processes depend on finely-tuned proteins and RNA molecules. Most of the papers that discuss these specialized molecules fail to mention how they might have evolved, as shown in three papers in the recent issue of Science. Walker with muscle: A paper by Kaya and Higuchi from the University […]
Stories of human ancestors around campfires evolving larger brains by eating meat or caring for animals often sound themselves life campfire stories. For example, Jeremy Hsu in Live Science speculated that “Caring for Animals May Have Shaped Human Evolution.” A cute girl with a puppy adorns the article. “Our love of all things furry has […]
Helen Hansma likes being a grandmother and studying the origin of life, according to a video on PhysOrg. To show she’s not over the hill, though, she came up with a sexy new hypothesis for how we got here: life emerged “between the sheets” – of mica. Her video clip explains three parts […]
Is it legal? Can a public school take kids to a creation zoo? Environment reporter Michael Marshall at New Scientist just about had a fit when he heard that “A UK zoo that pushes a creationist message has been approved as a destination for school trips by the government.” That could never happen in America, […]
Stem cells are still hot. Most of the significant findings are coming from adult stem cells (AS) or induced pluripotent stem cells (iPS) rather than embryonic stem cells (ES). For example, a PhysOrg article described progress at the University of Michigan in predicting what cell types stem cells will become. Nothing was said in the […]
Some scientists are looking into the folds of a sponge for clues about the Cambrian Explosion – the sudden emergence of all the major body plans in the geological blink of an eye. What they are finding is more complexity than a first glance at the simple creatures would expect. A draft genome […]
The universal energy currency in living things is ATP. To produce the vast quantities of this molecule required by life 24 x 7, cells employ banks of rotary engines called ATP Synthase, which we have reported on previously in these pages many times. ATP synthase has become somewhat of a mascot of intelligent design, because […]
Conspiracy theorists will probably have little to say now that the Mars Reconnaissance Orbiter has taken the clearest photo yet of the alleged “Face on Mars” in Cydonia. For the before and after photos, see PhysOrg. The new photo is clearly an eroded, rocky mesa – that’s all, folks. Use this as a teachable moment. […]
Scientists are finding that it’s not just having the right parts that makes a body go; it’s having those parts controlled by the right regulators. Recent stories make the case with their headlines: “‘Guardian of the Genome’: Protein Helps Prevent Damaged DNA in Yeast,” announced Science Daily. “Scientists find gas pedal – and brake – […]
The imitation of nature – biomimetics – is one of the hottest areas in science these days. Recent reports tell about research teams racing to move natural designs to market, and there’s no end in sight. Pack it green: Got parcels? Don’t use styrofoam peanuts and bubble wraps; that’s so 2009. Why manufacture plastic and […]
Did you know your heart is an electrical appliance? That’s right. Currents of electrical ions are vital to its function as a contractile organ. Now, researchers at the University of California have found another thing electricity does for your heart: it guides the developing heart into the proper shape. This is a key study showing […]
The world is a big place, and most animals are small. Yet many animals are found far from where their presumed ancestors lived. Most birds, naturally, can fly long distances, and some sea creatures can cross the oceans with the help of currents. That cannot explain all the cases, however. Here are some attempts by […]
A history of astronomy and a history of surprise discoveries in space would track pretty well. Recent stories show that the trend continues even today. Wet moon: The moon was thought to be depleted of volatiles – until now. According to PhysOrg, “Researchers discover water on the moon is widespread, similar to Earth’s.” Shouldn’t all […]
Most animals come in segments – body plans that are divided into more-or-less similar parts. Arthropods, worms and vertebrates are examples (including humans, with their vertebral segments and rough division into head, thorax and abdomen). Where did the idea of segmentation come from? Some French evolutionists think it just appeared by chance and changed the […]