According to a new study, chimpanzees, like humans, must contend with a confined bony birth canal when giving birth. In humans, the problem is exacerbated by our unique form of upright walking, since ...

Males born in summer months reported higher depression symptom scores than males born during other seasons, according to a study from Kwantlen Polytechnic University. Anxiety symptoms showed no ...

When states give driver's licenses to undocumented immigrants, it affects nondrivers, too—even the littlest ones. Babies born to immigrants from Mexico and Central America are bigger and healthier in ...