[Oh right, Morgana seems to be from the past. Even more past than he is compared to his friends anyway.]

Um, we lump things into different groups based on similar features! So... 'humans' are a species. And dogs are a species. Trees are a species, too. Species just means something like... a group of really similar living things. And then um we can break it down more, too, like... different types of flowers are all different even if they're flowers. Stuff like that!