Vanderbilt biologists have discovered that mosquito sperm have a "sense of smell" and that some of same chemicals that the mosquito can smell cause the sperm to swim harder.
Flies living with their brothers cause less harm to females during courting than those living with unrelated flies, say Oxford University scientists.
The next time you see birds flying in a V, consider this: A new study says they choreograph the flapping of their wings with exquisite precision to help them on their way.
Empathy-driven behavior has been observed in rats who will free trapped companions from restrainers. This behavior also extends toward strangers, but requires prior, positive social interactions with the type (strain) of ...