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Dog Breeds as Separate Species: Observing Evolution
in area: Commentary
Scientific American published a tongue-in-cheek piece advocating a reclassification of dog breeds into different species of dog. The author has a point: If a species is defined as a reproductively i...
Genetic Engineering Breakthrough: Building a Genome from Scratch
in area: In the News
Scientists have succeeded in building an organism's entire genome from scratch—without using existing DNA as a mechanical template. The journal Science published a paper August 20 in its online ...
What Color Were Dinosaurs? Now Fossils Have the Answer
in area: Features
What color were the dinosaurs? Schoolchildren have long been taught that the answer is something we can never know. Color pigments, after all, don't fossilize—or so it was thought. New dinosaur...
Is IVF Safe? Health Risks of In Vitro Fertilization
in area: Features
When a couple experiences infertility, the most common response of modern medicine is a referral for in vitro fertilization. But what are the dangers of IVF? In vitro fertilization is a tec...