Can a monkey, a pigeon or a fish reason like a person? It's a question scientists have been testing in increasingly creative ...

How researchers measure the logical reasoning of monkeys, pigeons, rats, fish and wasps shapes how they understand mental processes in animals − and in people.

What is the real story of Donald Trump and Russia? The answer is still unclear, and Democrats in Congress want to get to the bottom of it with an investigation. But there’s no doubt that a ...