Deterring ticks with citrus and millipedes

Why do birds, monkeys and other animals rub themselves with citrus and creatures like millipedes? One likely reason is because certain plants and arthropods contain natural repellents.

For flour beetles, it's better to be a woman in a man's world

For red flour beetles, being a female in a male world is advantageous. Unlike humans, where this situation traditionally confers a disadvantage, female flour beetles in male-dominated groups seem to reproduce better and live ...