Board Game Arena

Hello
could someone explain what are its effects? it's not in the original game I used to play with and not in the rules.
thank you

Hunting Trap (two hunters with trap between them)
You immediately score up to the eight surrounding tiles animals (see Hunter scoring above) - in the same meadow - in addition these animals will not count for end of game scoring

This is from the How To Play section if you scroll down on the game screen.