it depends on the way they are adapted e.g. polar bears live in a cold climate and have thick fur to keep them warm from the cold.
People who had something against them said they saw them commiting witchcraft. That person just said so and the "witch" was killed.
They determined real witches by how they acted but that was wrong to ask cause they were all blamed cause people could be who they want to be. The Salem Witch Trials were started by a few...
look up the maker of the computer. it should be on their website.
They were thrown into a river or lake. If they drowned they were innocent and if they survived they were condemned as a witch!