Children's genetic risks for obesity may be reduced by interventions that strengthen family communication and help children manage their emotions and feelings of satiety, according to a new review of research on the problem.

This is a skeletal preparation of a late stage skate embryo. Latest analysis shows that human limbs share a genetic programme with the gills of cartilaginous fishes such as sharks and skates, providing evidence to support a century-old theory on the origin of limbs that had been widely discounted.