An MMA fighter was offered £370,000 to take on a chimpanzee, with warnings about catastrophic injuries.

Cole Johnson said what began as a joke became an actual bout.

The event looked to have been called off after its website was taken down over safety and trust.

It was subsequently labelled as a cryptocurrency hoax.

In a separate case, nine chimpanzees on Ngamba Island selected a baited box on 73 percent of trials when a human pointed, called names and made food grunts.

By itself, pointing did not produce the same result.