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Opposable


The opposable thumb of a Bonobo
The opposable thumb of a Bonobo
Photographer: Kabir Bakie


Opposable means able to press together from opposite directions.


An animal is said to have opposable thumbs if the thumb is capable of being pressed against the other digits on the hand.


Most animal species do not have opposable thumbs, however they are a main feature of the primate family.


Also see:
Digit

 


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