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Animals can make decisions based on some information.
... based on some message.
... based on some messages.

Hi,
Do all of the above sound right and mean about the same to you? Thanks.
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No, I can't see 'messages' used here. Do animals receive messages?

some - plural - messages not message.
Comments  
nona the britNo, I can't see 'messages' used here. Do animals receive messages?

some - plural - messages not message.

Thanks, Nona.

To make sure, does "messages" only refer to those written ones?