Amazon will hand out $51 refunds to people who accidentally signed up for Prime. The first round will be sent automatically, but you'll be able to submit a claim for the second round.

Machine learning models are designed to take in data, to find patterns or relationships within those data, and to use what ...

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

They hunt in a nightmarish way ― grabbing prey as it passes. Once secured with a bite, pythons wrap their bodies around their prey and crush them.