When seen from below by a predator, the animal's light helps to match its brightness and colour to the sea surface above. Counter-illumination is a method of active camouflage seen in marine animals such as firefly squid and midshipman fish, and in military prototypes, producing light to match their backgrounds. Marine animals of the mesopelagic (mid-water) zone tend to appear dark against the bright water surface when seen from below.
A landscape is usually made up of a hardscape and a softscape which means the trees, plants and grass. The use of boulders, tiles, sculptures, walkways or bird baths can be used to create a beautiful sitting area, a place for entertaining guests, or an outdoor cooking space.
1 Anything made of stone, pavers, or concrete will cost more.  2 Hardscape is always more expensive than plants, says Elizabeth Przygoda-Montgomery of Boxhill Landscape Design in Tucson, AZ. 3  However, hard surfaces take very little maintenance in comparison to lawn or plantings, so you'll save on time and water in the end.