The sentence "Tigers are great swimmers, which helps them stalk food near water." is almost correct, but we can improve it slightly to make it clearer.
Here’s why:
- The phrase "which helps them" refers to "swimmers", but since "Tigers" is plural, it’s better to use "help" instead of "helps".
So, the corrected sentence would be:
Tigers are great swimmers, which help them stalk food near water.
This means tigers’ swimming skills help them catch their food near water. It is both grammatically correct and easy to understand.