{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Extinction of Species | Evolution | Biology | FuseSchool' data-url='/boclips/videos/625f71ffb09c1a0537ece5e9' data-video-url='/boclips/videos/625f71ffb09c1a0537ece5e9' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nExtinction of Species | Evolution | Biology | FuseSchool\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eWhen a plant or animal species that once lived stops existing entirely, we say that that species has become extinct. Why do certain species of plants and animals sometimes become extinct? According to the theory of evolution, individuals...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eWhen a plant or animal species that once lived stops existing entirely, we say that that species has become extinct. Why do certain species of plants and animals sometimes become extinct? According to the theory of evolution, individuals of the same species show a range of variations. Some individuals have characteristics that are better suited to their environment, making them more likely to survive and reproduce, whilst others are less well adapted. These less well adapted individuals may eventually fail to reproduce and eventually their genes are removed from the population. If an entire species fails to adapt to changes in its environment, or compete with other organisms for resources, and its birth rate is lower than its death rate, then it will become extinct. Over 99% of all the species that have ever lived are now extinct! Typically, most organisms become extinct within 10 million years of their first appearance, although some species have survived without much change for much longer than this. These long-surviving organisms are sometimes called “living fossils”. The African aardvark and the Himalayan red panda are two examples of such living fossils as both have remained genetically unchanged for millions of years. From time to time, an event takes place on Earth which causes a mass extinction. These mass extinctions are identified by a significant and often devastating change in the number and variety of organisms alive at one time. The most famous mass extinction, called the K-T extinction event, occurred about 65 million years ago and involved the extinction of the dinosaurs. The most devastating extinction event happened 251 million years ago, and completely eradicated 96% of all known species. This was probably due to a comet or asteroid impact. Today, many species are becoming extinct at an alarming rate. This is of great concern to biologists and ecologists. It is currently estimated that 50% of all living species will be extinct by the year 2100. What can we do to slow or halt this spiral of extinction? Stopping habitat destruction is a key starting point, as well as becoming greener, lowering our carbon footprint and using sustainable products we may be able to affect this, and it’s up to all of us to play our part. SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun \u0026 easy-to-understand videos in Chemistry, Biology, Physics, Maths \u0026 ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. 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