Even though they're one of our more distantly related primate cousins, macaque monkeys keep revealing remarkably human-like abilities. First they displayed self-awareness, and now it turns out they can count...but only if they don't get to eat what they're counting.
Self-awareness, the ability to assess and even doubt one's own thoughts, is a crucial sign of intelligence, but it's also one of the hardest traits to identify. Macaques have now demonstrated they have self-awareness...which might explain our own evolutionary story.
Forget about the Constellation missions to Mars, because the first Earthlings set to arrive to the Red Planet may be monkeys: macaques from the Sochi Institute of Medical Primatology, who may get back as fully grown primate overlords, or just prove that humans would be able to resist the 17-month trip in…