While you may not be able to teach an old dog new tricks, it seems you can teach a fish. Scientists have seemingly been able to train fish how to navigate their tanks in order to receive a reward.
16don MSN
Engineers build robotic fish that swim, dock and recharge themselves with no feeding required
Watching fish glide silently around a tank is one of the most relaxing hobbies a person can pick up, but keeping an actual ...
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