The hottest toy this holiday season may be a robot dog that whimpers, blinks its eyes, wags its tail and responds to a rub on the head. The only thing Dog-E won’t do is soil that expensive rug – ...

Amazon announced its Astro home robot on Monday, which is designed to be an Alexa on wheels that can also bring you stuff (if other people load it into the cargo bay) and act as a sort of guard dog.