Are Fish Much Smarter Than We Think?
Source: Macquarie University
June 27, 2011
"Fish are not renowned for their smarts, but new evidence suggests that they may even be able to use simple tools.
In a paper published today in the journal Coral Reefs, researchers from Macquarie University and Central Queensland University report on a tusk fish smashing open shells on an anvil to access the meat inside.
Tool use has long been associated with the rise of humans and a sure sign of intelligence. For a long time it was thought to be unique to humans, but studies soon showed that primates also used tools for various tasks such as cracking open nuts. More recently it has been revealed that a variety of birds also manufacture and use tools (eg New Caladonian Crows), which suggests that tool use in animals may be more common that once thought."
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