Most obese patients grow resistant to satiety signals from the hormone leptin. A new study shows that leptin sensitivity can be restored in mice, leading to weight loss.
Male fruit flies don’t just sing to their mates; they also use sound-cancelling wing-flicks to jockey with rivals. This new understanding of how male flies compete for female partners could shed light on how the brain balances cooperation and competition.
Researchers have identified how the architecture of brain circuits helps different species flexibly adapt to new mating signals across evolutionary timeframes.
