You may get Brownie points from SE for "Poodles" and then MORE Brownie points for using the singular as well? Does it work like that?
Yes, it will give you a better chance of showing up for either the singular or the plural.
I have to go along with that...for now.
I notice that a lot of spammy sites use long title tags with duplicate words and punctuation, such as:
Hotels in Antarctica, cold Antarctic hotels, book hotel in Antarctica, Antarctica hotel bookings
I wonder how long it will be before the engines start penalizing title tags with punctuation in the middle.
I'm just musing here, nothing more. (That's what happens when you have a sick child up all night!)