Parent of origin effects help determine how lab rats respond to stress. Although your father and mother each contribute a copy of your genes, these...


A new collection of inbred flies provides a tool for studying genetic control of sleep. Sleep is vital for a healthy life, but some of...


Food-deprivation inhibits the stress-induced sleep response in C. elegans. For many animals, the essential physiological drives of sleep and food are intimately linked. You might...


Imprinted genes can have oppositional effects on adult behavior in mice. Mammalian genomes show the marks of a genetic tug-of-war between mothers and fathers. These...


A new study reveals genetic changes that affect social behavior in chickens. We have a number of phrases that relate human behavior to that of...


Whether it’s a battle over territory or a brawl over a sports game, aggressive behavior is a hallmark of the animal kingdom. The influence genetics...


When you catch a nasty cold, curling up in bed to sleep may be the only activity you can manage. Sleeping in response to stress...


A green, iridescent bee perches on a pink flower, extending its proboscis to reach the sweet nectar inside. He’s not just after a meal—he’s also...


In critical situations, communication can mean the difference between life and death. If our house goes up in flames, we don’t need to smell smoke...


Whether a thunderclap drives your dog to cower behind the couch or leaves it unfazed may be determined in part by genetics. In the June...