The area of the World Ocean is about 361.9 million square kilometers (139.7 million square miles), which covers about 70.9% of Earth's surface, and its volume is approximately 1.335 billion cubic kilometers (320.3 million cubic miles). This can be thought of as a cube of water with an edge length of 1,101 kilometers (684 mi).
Their markings and shadings are just like other iguanas, just the colors are different. When happy/healthy, they may get some green in their stripes or markings. They essentially look like a photograph negative of a green iguana.guana Color Variants The following color variants (except the brown) are not generally seen until the iguana is heading into sexual maturity. The hatchlings' deep greens, useful in camouflaging them, begins to lighten, striping or patching diffuse or develop, as they reach one year of age.
The Galapagos Marine Iguana is large and dark with variable coloration. Distinguished from the land iguanas by the flattened, rather square nose, an adaptation for feeding on marine algae, and by the laterally flattened tail, an adaptation for swimming. ADULT MALE: Male marine iguanas have a row of long spines on head an along back and tail. Variable pattern on body which ranges from red and black (venustissimus on EspaÃ±ola), through green, yellow and black (albemarlensis on Isabela), to predominantly dark sooty-grey (cristatus on Fernandina).