Everybody requires Water to survive. It is a critical factor in any environment. No Water? No, thank you.
Puddles are only one sort of water phenomena. They are mostly not too large, and are limited by depth. If the water comes over your knee, then is is another sort of Water deposit, though We don’t know what it’s called. Perhaps a pool? If you can float a real boat in it, it is disqualified as a puddle. And of course, a puddle is not part of another body of water. It just sits, until it evaporates or is drunk.
Puddles also provide a fine beginning for a Wallow, so We Rhinos keep a lookout for them, Puddles.