Biodiversity

The diversity of life forms on Earth is huge. A naturalist expedition around the planet discover that, among many other species, monkeys and apes in the dense rainforests Africa; lions, antelopes, zebras, giraffes, ostriches and elephants in the savannah Serengeti; moose and reindeer in coniferous forests in Scandinavia; cobras and Bengal tigers in India; eucalyptus trees koalas among Asians; kangaroos in

Australian plains; camels and cacti in the Sahara Desert; Condors in the Andes; polar bears in the Arctic; penguins in the Antarctic; seagulls and palm trees on the warm beaches; colorful fish on coral Caribbean Coral Sea; sharks, dolphins and whales in the oceans; piranha the Amazon River; mosquitoes and other insects between the wet litter; microorganisms in the soil, water and in the deep dorsal

Atlantic ... That diverse plant and animal species are preserved and displayed in botanical gardens, greenhouses, aquariums, zoos, parks national and ecological reserves; that several species of cereals, legumes, vegetables, spices, flowers, fruits and other vegetables, as well as horses, cows, sheep, pigs, chickens, birds, dogs, cats, mice and other animals have been domesticated and are part of human culture.

Biodiversity is the variety of life forms on Earth.

For the different levels of organization in biology, the concept of

biodiversity commonly extends the full diversity of genes,

species and ecosystems on the planet.

Biodiversity, a product of millions of years of evolution

Environmental conditions change over time. The relief of the

Earth's crust is modified. Arise mountain ranges and volcanoes, is

extend the valleys and crevices from continents able to open, while

the ocean floor expands.

Life forms have always transformed that have faced

environmental changes, and these biological transformations have been

recorded in the rock strata. The fossil record discovered in rocks

sedimentary allows partially reconstruct the history of life on

Earth. It is a natural history that has been supplemented with data obtained

directly from living organisms, which are a rich source and

less fragmentary information that fossils.

The evolution of living beings has also been codified in

genome of each species. Genomics and proteomics

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