Wheres the science in this?

So I typed bear and a grizzly bear showed up and it started to attack. So then I thought a black bear would NEVER attack. I typed out black bear and when I dropped it down it started attacking! I know its just one thing but still you want people to use their brains to complete the level, can you at least have some science?

Toy mouse about Scribblenauts Remix, v5.8