The Witcher wiki now has a light themed alternative for the wiki skin. To check it out, go to Special:Preferences, then choose the "Appearance" tab and click on the radio button next to "Hydra".
Creatures include all living things except for plants. To make them easier to talk about, they are broken down into smaller groups based either on relative threat, intelligence or habitat. By relative threat we have "ordinary creatures" and monsters, by intelligence we have ordinary creatures and races; and by habitat we have water creatures, forest creatures and desert creatures.