I've seen video of water buffalo trampling lion cubs. Several members of the herd storm into a group of lions, keeping the lioness busy while others kill the cubs.
There is a tree known as the manchineel or manzanilla de la muerte (little apple of death). Every part of the tree is poisonous. If you stand under the tree when it rains, the sap can kill you.
Forget "good" and "evil" - what's good to you may be evil to someone else.