[Grammar] Bears's eat fish. Bears' eat fish. The bear eats fish. Which is right expression?

[eggcracker]

Hello.
Among three sentences:1.Bears's cubs eat fish. 2.Bears' cubs eat fish. 3.The bear's cubs eats fish.
I think 3 would be okay and mean the same as either 1 or 2, if all kinds of bears eat fish. Am I thinking okay?
And between the two sentences(1, 2), Which is grammatical expression?

Thank you in advance.

 

[SoothingDave]

If you are talking in general about bears, then just say "bear cubs eat fish."

#1 is never correct. #2 is the plural possessive (the cubs of more than one bear).

 

[Barb_D]

You don't form plurals using an apostrophe.

#3 means you have one bear, who had multiple cubs, who eat fish.
#2 would be okay with a "The" before "bears'"
#1 is not okay.

One bear: The bear's cub
Two bears: The bears' cubs
Not correct: bears's

 

[eggcracker]

You don't form plurals using an apostrophe.

#3 means you have one bear, who had multiple cubs, who eat fish.
#2 would be okay with a "The" before "bears'"
#1 is not okay.

One bear: The bear's cub
Two bears: The bears' cubs
Not correct: bears's

Thank you. But, is it okay to use expression like "

one bear, who had multiple cubs, who eat fish."?
I've believed that I can only use "who" after "human".
If someone let me know it would be okay to use "who" after "animal", then I can sure it would be okay to use that expression.​

 

[Barb_D]

I'm pretty sure I am "someone" and I'm pretty sure I used it the way I would in a natural conversation.
If you feel more comfortable using "that" after the mama bear cub, go ahead.