Boston Dynamics robots look so weird..This weirdness is probably caused by the uncanny valley.

In order to solve the problems of locomotion, the Boston Dynamics robots are starting to move like animals and people.

This movement is both lifelike - and yet not perfectly so. As human beings we are expert at spotting life, but are disturbed by small difference from perfection.

So robots which look almost alive are more troubling than mechanical motions.