A wide range of creatures have adapted to counter the adverse effects of extreme winter temperatures by undergoing physiological and biochemical changes.
Monkeys known as macaques possess the vocal anatomy to produce "clearly intelligible" human speech but lack the brain circuitry to do so, according to new research.
A new type of photoreceptor has now been discovered -- only the third to be found in animals -- that is about 50 times more efficient at capturing light than the the human eye.