# behaviour

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U

#### Unregistered

##### Guest
Hi there,

When should I use 'behaviour' as countable and uncountable noun?
For example,
We study the behaviour(s) of human beings and animals.

Thanks
simon

#### Buddhaheart

##### Member
When ‘behavior’ (as a count noun) means somebody or something behaves in a particular situation and not somebody beaves towards other people. I think the plural form is more appropriate in your sentence.

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