The sea squirt finds a rock to live on and then eats its own brain.
The cutting edge
The cutting edge An automatic lawnmower, called the RL500 Robotic
Mower, has been introduced in the United States. This lawnmower
mows lawns by itself without human help. It weighs 78 pounds, and
is powered by two 12-volt rechargeable batteries, and looks like a
low-slung vacuum cleaner. NOVEMBER 6, 2000
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