Robot Holocaust V-The Turtle Supremacy

Yep, another brick in the wall of humanity's eventual doom:

A robotic turtle could help engineers build better autonomous underwater vehicles and answer fundamental questions about how prehistoric beasts swam. The robot, called Madeleine, is already helping researchers understand when it is best to swim with four flippers and when to use two.

Madeleine is similar in size and weight to a Kemp's Ridley or Olive Ridley sea turtle, measuring 80 centimetres by 30 cm and weighing 24 kilograms. The robot also has a comparable power output, between 5 and 10 watts per kilogram, depending on how hard it is working.

Sure, roboturtles can still enslave and destroy humanity--just much more slowly than the Slitherbots (see below).