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This is a topic from the Playful Penguin Place forum on inthe00s.
Subject: Cleverest crows opt for two tools
Written By: Philip Eno on 08/19/07 at 2:50 am
From BBC News Online:
Crows have shown that two tools are better than one when it comes to problem solving, scientists say.
A University of Auckland study has revealed that New Caledonian crows can use separate tools in quick succession to retrieve an out-of-reach snack.
The birds were using reasoning that was more commonly seen in great apes and humans, the New Zealand team reported in the journal Current Biology.
New Caledonian crows are renowned for their tool-making ability.
The birds (Corvus moneduloides), which are found on the South Pacific island of New Caledonia, use their bills to whittle twigs into hooks and cut and tear leaves into barbed probes that can extract bugs and grubs from crevices.
Read more here.