In article , datsy
writes
On the subject of slugs, Bill Oddie in Springwatch said "If they are big and
black, put them back", i.e. that they do good in the garden, but I didn't
catch the reason why.

They'll clear up dead and decaying stuff. And all sorts of rubbish, even
dead slugs.
And if you ever find a slug which has a tiny vestigial shell towards one
end, it's carnivorous not vegetarian and will eat other slugs.


--
Kay
"Do not insult the crocodile until you have crossed the river"