God transported the 6 of you to a room with a single tree in it with seemingly endless branches, although the top of it seemed to be dead and barren. God said "This is the Tree of life. Sort of a representation of the real thing, but connected. Go ahead and take a look at some of the leaves." and with his permission the 6 of you went to look at some of the leaves. You looked at a random branch and then with one leaf in hand an image in your mind appeared. It seemed like some horrifying monstrosity for a second, spooked you jerked your hand back plucking the leaf. God walking around looked and said "Woo, that would've been a bad one for the earth good job."
You asked "Wait, what was that and what did I do?"
God said "Well that was a nasty breed of bacteria that would've wrecked havoc. Since everything on that tree is a living species... well the leaf is off the tree so."
You said "So I just committed genocide?"
"More or less, to be fair you did save countless lives."
"So what if I plucked humanity off this tree we'd all die?"
"Yeah, but that leaf is so far up the tree there was no way you'd pluck anything like that. Either way... HEY EVERYONE LESSON HERE IS IF YOU WANT AN ENTIRE SPECIES DEAD JUST PLUCK A LEAF HERE!... alright then what was next on the tour?"