Orangutans are a lot like us. They also think a lot like us. A case in point: they can tell truths from lies. Scientists now have the evidence to prove it. German researchers at the Max Planck Institute for Evolutionary Anthropology conducted psychological experiments with nearly three dozen great apes,…

Rocky likes to grunt – a lot. No, we don’t mean the iconic celluloid boxer played by Sylvester Stallone. He does like to grunt a lot too, but we mean Rocky the orangutan, who lives in the Indianapolis Zoo. Okay, you might say, so what? What if Rocky the orangutan…