BBC News – by Michelle Warwicker
Several cockatoos could complete the five-step mechanical puzzle to reach their goal – a cashew nut treat.
Cockatoos can pick their way through a series of locks to reach a reward, scientists have found.
Researchers presented 10 birds with a box containing a cashew nut treat, which they could reach by removing five different interlocking devices. Continue reading “Cockatoos crack lock-picking puzzle”

Mashable – by Alex Fitzpatrick
Softpedia
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