Life Science Learning Goals Which skull is a lizard and which is a snake? During this session, you will have an opportunity to build understandings to help you: Define what is meant by “species.” Describe how new species evolve as a result of variation and adaptation through natural selection. Evolution Resources from the National Academies In the News: Your Inner Fish – A Scientific Adventure Have you ever wondered why people look the way they do? Why our hands and feet have five digits instead of six? Why we stand on two legs instead of four?
Transitional forms Transitional forms Fossils or organisms that show the intermediate states between an ancestral form and that of its descendants are referred to as transitional forms. There are numerous examples of transitional forms in the fossil record, providing an abundance of evidence for change over time. Resources for Teaching and Learning Biology General Biology Nature of Science EvolutionSustainability General Biology: ActionBioscience.org features issues-based articles written by prominent scientists, accompanying lesson ideas, and related teaching resources for high school and undergraduate biology educators. AAAS Science NetLinks is a guide to standards-based Internet experiences for students. BiosciEdNet.org provides a searchable database of resources from BEN Collaborative partner organizations such as AIBS, Ecological Society of America, American Society for Microbiology, and Botanical Society of America. BioQUEST Curriculum Consortium promotes curriculum innovation by serving a national role as a networking resource for individuals to share, distribute, and enhance cooperation among on-going and future biology education development projects.
Superpower: Immortality video Darwin’s theory of evolution by natural selection Homo Sapien Evolution An infinite amount of birthdays seems incomprehensible. The pace of evolution The pace of evolution Does evolution occur in rapid bursts or gradually? This question is difficult to answer because we can't replay the past with a stopwatch in hand. However, we can try to figure out what patterns we'd expect to observe in the fossil record if evolution did happen in bursts, or if evolution happened gradually.
National Museum of Natural History Unearthed: NMNH Cupid Love is in the air at the National Museum of Natural History! Our scientists are helping species look for love in this series of “dating profiles” to celebrate Valentine’s Day. Will #NMNHcupid help them find their one and only? What I look like through a microscope. Microscope Imaging Station. Neurons: A Fish-Eye View of the Brain Speed-dating neurons make connections Researchers in the Smith lab have also been able to watch the development of single neurons as they grow and connect to each other to complete the optical system. What they’ve seen helps explain how the brain's enormous complexity emerges. It now appears that brain organization happens in stages. As a developing neuron grows, it sends out tiny exploratory branches called filopodia.
Five fingers of evolution - Paul Andersen In his talk, Paul Andersen explains the five causes of microevolution. Research one example for each cause in the human population. Use the following population simulator to simulate microevolution: Run the simulation using the default settings.
Follow Friday: Exploring the Wild World of Botany Astrophysicists get to study the whole wide universe. Evolutionary biologists get to study the very origins of life. Botanists, they get…plants. Explore, Play, Discover: Websites, Activities & More Search form Search Low-cost, teacher-tested activities for the classroom and the curious.