Animals of the Earth Exploration Space Progress in Science and Technology Exploration Space Biodiversity Evolution of Life Evolution of Life The Natural World Behind the Scenes at the National Science Museum   Nature of the Japanese Islands History of the Japanese Islands Organisms of the Japanese Islands Japanese People and Nature Techniques in Observing Nature   has been viewed. --We are All Part of the Same Ecosystem-- The evolution of life on Earth has produced some 10 million different species. Although all the species share the basic characteristics of living organisms, each species has adapted in form and lifestyle to its own particular environmental circumstances. No species lives in isolation; our lives are intricately interwoven. We must never forget that we are but one part of the rich fabric of the ecosystem. Giant Kelp Forests Cold Seas Temperate Seas Food Chains in Marine Organisms Tropical Seas The Deep Sea Diversity of Marine Plants Various Landscapes on Earth The Linkage of Life Mangrove Forests Tropical Rainforests Wetlands Temperate Forests Alpine Regions Deserts   What is Life? Species of Life Factors of Diversification : Evolution Factors of Diversification : Speciation Examples of Diversification Tree of Life Size Factors Challenges of Extreme Temperature and Humidity Seeking for Nutrients Succession of Life Symbiosis and Parasitism How much do we really know? Pursuit of Diversity