The word snakes is a common plural noun. It requires no apostrophe.
Snakes in the grass is an idiom.
If the word snakes has a possession or belonging, it needs an apostrophe.
The snakes' movements through the grass left trails.
Snakes In the Grass was created in 2010.
in the grass that's why they are called grass snakes also look in the undergrowth
All snakes can bite but grass snakes rarely do unless provoked.
Grass
they do not
I am does not need an apostrophe. It is only when you make it into a contraction by dropping the a that you need the apostrophe. It becomes I'm in that situation.
Grass snakes and rattle snakes and garden snake
No. The Cannons doesn't need an apostrophe.
No, Christmas Eve does not need an apostrophe.
no grass snakes do not eat aphids
they do not
No, raccoons have no fear of snakes and will hunt them for food.