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Most science talks I listen to, even good ones, leave me dissatisfied because the stories I hear never come to a complete resolution. The issue is this: we can get from traits to genes, and from genes to molecular biology. But we have largely failed at getting from molecular biology back to the characteristics of>
Embryologists at University College London have helped solve an evolutionary riddle that has been puzzling scientists for over a century. They have identified a key mechanism in the initial stages of an embryo's development that helps differentiate more highly evolved species, including humans, from less evolved species>
Would you like a side of food poisoning with that salad? Salmonella can infect plant cells and successfully evade all the defense mechanisms of plants so cleaning the surfaces of raw fruits and vegetables, e.g. by washing, is not sufficient to protect against food poisoning, according to a study published today>
Biologists at Harvard University have determined that some African frogs puncture their own skin with sharp bones in their toes when threatened, using the bones as claws capable of wounding predators. It's not quite the X-Men's Wolverine (they can't cut through Magneto) but it's a nifty defensive mechanism. "Most>
Concerned parents have been worried about the potential impact of exposure to low levels of mercury on the developing brain, such as when pregnant women consume fish, and that has led to claims that the chemical may be responsible for behavioral disorders such as autism. >
Aromatherapy, essential oils, and such, have no medical benefit in humans, but they do work against some pests, if you don't want to use something better.The process is simple enough for simpler creatures; insects are attracted to some smells and repelled by others. So use the repellent on plants you want to keep>