The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

Are you ready to put your pattern-spotting, logic, and IQ to the test? In this challenge, we’ll twist numbers, letters, and ...

It took a long time for zero to be recognised as a number at all, let alone one of the most powerful ones – but now it’s ...

In a recently published, PNAS study, professor Andreas Neider and his team found that crows and rhesus macaques take mental shortcuts.

We've been studying them for millennia, so how far have we come?