If you don’t want to eat them, then

If you don’t want to eat them, then just leave them there and let nature takes its toil.

Results (Chinese) 1:

如果你不想吃，然后就放在那里，让自然采取它的辛劳。

Results (Chinese) 2:

如果你不想吃它们，那就把它们留在那里，让大自然去辛劳。

Results (Chinese) 3:

如果你不想吃它们，那就把它们留在那里，让大自然来承担它的辛劳吧。