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.
For a more exotic look, add a rock garden to your landscape. Choose an area that gets plenty of sun and install two or three small boulders. Surround the boulders with closely spaced low-lying flowers, such as portulaca (left), ground orchids or decorative cactus.he rocks you choose will help set the tone for the rest of your garden. Tawny beach pebbles or river rocks add warmth, while white marble chips help brighten up shady areas. Flat terracotta stones complement a tropical landscape, but can seem out of place in a more formal garden.