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- The amphibians Amphibians have a complex and unique lifecycle. From their eggs, born larvae that live always into water. After grow quickly, larvae become adults. All adult amphibians are predators and most of them eat insects and little invertebrate animals. They use to have a lonely life, except when they have to reproduce. About the image: Axolotl o ajolote (Ambystoma mexicanum) Adults from this species are in critical danger, in nature rarely survive in Mexico City lakes, axolotls have external gills and they never get out from water.
August 18, 201600 - The life of the stars Stars could live for millions of thousands years. And the most of them seems not to change during a human life. Study their lives is like trying to study a forest in wich one there are trees of different types, ages and then try to investigate how grows every tree individually. As the trees, all the stars don’t get old in the same velocity. Stars similar as the Sun live about 10,000 millions of years, but a really giant star could live barely some millions of years. When a stars pass from a life stage to another, its shape change. Do you know that lots of the elements of the Universe, including that form our body, were made in the stars? Then these elements were mixed with the gas clouds that form other stars and planets. About the image of the Mystic Mountain: “Hubble's 20th anniversary image shows a mountain of dust and gas rising in the Carina Nebula. The top of a three-light-year tall pillar of cool hydrogen is being worn away by the radiation of nearby stars, while stars within the pillar unleash jets of gas that stream from the peaks. Credit: NASA, ESA, and M. Livio and the Hubble 20th Anniversary Team (STScI)”
August 14, 201640
