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TOTUS AMAZON COSMETICS

Fun Facts

• The Amazon is the largest and densest rainforest on earth

• The Amazon covers 2.5 million miles, about the size of the USA west of the Mississippi

• If the Amazon was a country, it would be the 9th largest on earth

• Each minute the Amazon River discharges 3.4 million gallons of water into the Atlantic, 14 times the discharge of the Mississippi

• The Amazon runs 4007 miles from its origin in the Andes to the Atlantic, making it the second longest river on earth

• During its journey it touches and-or travels through 8 countries

• There are 200 major tributaries of which 17 are more than 1000 miles long and 10 of which discharge more water than the Mississippi

• Its vegetation represents about 1/3 of the remaining forest on earth and provides about 15% of the world's new oxygen

• rain forests cover less than 6% of the earth's total land surface

• rainforests are home for up to three-fourths of all known species of plants and animals

• 1/3 of all the birds in the world live in rainforests

• In Central America, a scientist caught over 500 different species of insects by sweeping a net through the air fewer than 2000 times

• In stead of wind, many hummingbirds, other birds, bats and insects are the main source of spreading seeds throughout the forest floor

• Frogs in the rainforest are very bright and shiny

• A rainforest can have more ants, in weight and numbers, than anything else

• Two thirds of the world's plants are found in the rainforest

• The Amazon River is the worlds greatest river. The Nile River of Africa may be slightly longer than the Amazon, depending on the channels measured, but for many other reasons the Amazon River is the undisputed greatest river on the planet.

•  The average discharge of water into the Atlantic Ocean by the Amazon River is approximately 175,000 M3 per second, or between 1/5th and 1/6th of the total discharge into the oceans of all of the worlds rivers!!! This discharge is 4-5 times that of the Congo River, and 10 times that of the Mississippi River.

• The Rio Negro, a tributary of the Amazon, is the second largest river in the world in terms of water discharge, and is 100 meters (over 300 feet) deep and 14 kilometers (~9 miles) wide near its mouth at Manaus, Brazil.

• Average rainfall across the whole Amazon basin is approximately 2300 mm (or ~7.5') annually. In some areas of the northwest portion of the Amazon basin, yearly rainfall can exceed 6000 mm (almost 20')!

• All of the water that is discharged into the Atlantic Ocean is actually only about 1/3rd of the water that falls into the Amazon basin as rain. Where does the other 2/3rds go? Up to half of the rainfall in some areas may never reach the ground, being intercepted by the forest and re-evaporated into the atmosphere. Additional evaporation occurs from ground and river surfaces, or is released into the atmosphere by evapo-transpiration from plant leaves. All of this evaporated moisture re-enters the water cycling system of the Amazon, and a given molecule of water may be "re-cycled" many times between the time that it leaves the surface of the Atlantic Ocean and is carried by the prevailing westerly winds into the Amazon basin, to the time that it is carried back to the ocean by the Amazon River.

• The total length of the Amazon River from its source springs in the Andes (taking the Ucayali River as the continuation of the main river into the Andes), is estimated at 6518 km (not including all river bends, and measured the short distance around Marajó Island in the mouth of the Amazon), or ~4075 miles in length. This is exceeded only by the Nile River (including the Kagera River) of Africa with a total length of 6671 km (4170 miles). The headwaters are located high in the Andes at an elevation of about 5,200 meters (17,000 feet), and only 190 kilometers (120 miles) from the Pacific Ocean.

• Two of the tributaries of the Amazon, the Juruá and the Madeira Rivers, are both over 3,300 km (2,060 miles) long. About 1,100 other tributaries empty into the Amazon River.

• The mouth of the Amazon is over 320 km wide (approximately 200 miles), and contains the worlds largest freshwater island, Marajó Island, with an area of 48,000 km2.

• After leaving the Andes, the elevational gradient of the Amazon is very low. At Iquitos, Peru, still some 3,600 km (2,250 miles) from the Atlantic, the river-level at low-water season is only about 100 m (a bit more than 300') above sea-level, and the slope is around 2 cm (less than one inch) vertical change per kilometer. In the lower Amazon, at the mouth of Rio Negro and still 1,500 km from the Atlantic, the river-level at low-water season is only 15 m (~47') above sea-level, and the slope is about 1 cm per kilometer.

• Seasonal water levels can vary up to 20 meters (65 feet) in the middle Amazon region. Towards the mouth of the Amazon, the yearly change becomes less and less, but even near the mouth of the Amazon (at the Rio Xingu), it is still 4 meters (12 feet).

• The seasonal variation in water levels means that huge areas along the major rivers in the Amazon basin are periodically flooded. The total area of flooded, or varzea, forest is between 50-60,000 km2, or about 4% of the total area of the Amazon rainforest. These flooded forest areas may extend as much as 80 kilometers (50 miles) from the main river channels, and the forest vegetation of the varzea is well adapted to being seasonally flooded. The structure and species composition of the varzea is very different from non-flooded upland (or terra firme) forest areas. Varzea forest areas are critical to the freshwater fisheries of the Amazon Basin.

• Despite the low slope of the Amazon, the river currents can be surprisingly strong. In the lower Amazon (with the lowest slope), current speeds range from 0.5-1.0 meters per second at low water, and twice that at flood stage. In localized areas, current speeds can reach as high as 3 meters (9.8 feet) per second.

• The width of the Amazon at Iquitos, Peru (3,600 km/2,250 miles from the ocean) is about 2 km. Ocean-going ships can easily access the Port of Iquitos at high water, as the mean depth of the current-canal of the Amazon is between 40 and 50 m (or up to 150+ feet deep), and in places, over 100 m (over 300 feet) deep. Even hundreds of miles away from the ocean, sections of the bottom of the river channel actually lie below sea level!

• In the Atlantic Ocean beyond the mouth of the Amazon, and resting on the continental shelf, the Amazon sediment cone has a length of about 680 km and a width of 250 km. These fine grained deposits (mostly clay/mud particles) on the ocean floor are over 11,000 meters (36,000 feet) thick. This is mostly sediment that has been carried downriver from the Andes Mountains, the Guianan Shield (to the North) and the Brazilian Shield (to the south), by the river current, and which settled out of the water column once the river current dissipated into the waters of the Atlantic Ocean.

• The Amazon basin (the watershed of the Amazon River) is 7,050,000 km2 in area (or about 2,500,000 square miles), and covers about 40% of South America. Of this area, approximately 5,000,000 km2 is (or was) covered by high tropical rainforest, with the remainder covered by savannah ("campo") or scrubby woodland ("cerrado"). The Amazon basin covers significant portions of the countries of Brazil, Peru, Colombia, Ecuador, Venezuela and Bolivia, though the major part of the watershed lies within Brazil. The next largest tropical watershed, that of the Congo River, at 3,690,000 km2, is only half the size of the Amazon basin.

• Although it now empties into the Atlantic Ocean, the Amazon once flowed into the Pacific! The uplift of the Andes Mountains about 65 million years ago in a geological event called the Laramide Revolution cut the flow to the Pacific, and forced the Amazon River to flow eastward. This revolution took place when the westward-moving South American (geological or tectonic) plate crashed headlong into the eastern-moving Nazca Plate. The Nazca plate was forced beneath the South American plate, lifting up the Andes mountains in a process that continues to this day, as evidenced by the many earthquakes and high volcanic activity of the Andes region.

• The Amazon basin has not always been an area of lush tropical rainforest. At several times during its history, the basin has been the location of huge lakes and shallow seas. Salt deposits up to 600 meters thick (nearly 2000 feet!) have also been found in some locations, indicating that at one time, the basin may have been desert-like, drying up the shallow seas and creating the salt deposits.

• Would you believe that the Amazon River has its own sand dunes? Echogrammes of the river bed below the mouth of the Rio Negro show giant sand dunes as long as 600 meters (2000 feet) and up to 12 meters (39 feet) in height. These dunes are gradually moved downstream in the same manner that wind moves sand-dunes in "true" deserts!

• The Amazon basin is home to over 2,500 species of fish, more species than are found in the entire Atlantic Ocean, and some experts estimate that there may be as many as 5,000 species! These range from giant air-breathing fish (Arapaima gigas) and river catfish weighing up to 600-700 lbs, to tiny tetras, electric eels, sting-rays, needlefish, fresh-water flying-fish, and knife-fish. The fish fauna of many river systems is poorly known, and new species are discovered yearly, even in the "better-known" areas!

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Last modified: 01/17/05