To recognize a venomous Coral snake from the more docile King snake:
Red touches Yellow, kills a fellow; Red touches Black, friend of Jack.
To avoid poisonous vines:
Leaves of three let them be; berries white, take flight!
When you run into a bear:
If it’s brown, lie down; If it’s black, fight back; If it’s white… well, you’re in trouble. (cute saying, but THIS IS ACTUALLY WRONG… see the Bear Encounters post to learn what you should really do!)