Crash Course Biology (2012) : 2x11
What a weirdly long giraffe nerve can teach us about evolution
15 Min.
Overview
From a single-celled common ancestor, evolution has brought us all of Life’s Greatest Hits — including butterflies, beetles, bacteria, and human beings. In this episode of Crash Course Biology, we’ll learn how evolution explains life’s unity and diversity. Along the way, we’ll explore the fishy origins of a giraffe’s neck, and find out what a cat’s paw and your own arm have in common.
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2 - 1Introduction to Biology June 06, 2023 -
2 - 2The Scientific Method June 13, 2023
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2 - 3What Biologists Do June 27, 2023
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2 - 4How Life is Organized July 11, 2023
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2 - 5Why Did All These Elephants Die? (Intro to Ecology) July 18, 2023
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2 - 6How Species Make and Break Friendships (Community Ecology) August 01, 2023
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2 - 7How Did We Save The Bald Eagle? (Population Ecology) August 08, 2023
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2 - 8What Is Climate Change? August 15, 2023
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2 - 9The Effects of Climate Change August 22, 2023
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2 - 10
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2 - 11What a weirdly long giraffe nerve can teach us about evolution September 05, 2023
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2 - 12Microevolution: What's An Allele Got To Do With It? September 12, 2023
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2 - 13Natural Selection: Life's Way of Stayin' Alive September 19, 2023
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2 - 14Why do we have different skin colors? (Population Genetics) October 04, 2023
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2 - 15Where Do Species Come From? (Speciation) October 10, 2023
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2 - 16How did life begin? (Evolutionary History) October 17, 2023
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2 - 17How We're All Related (Phylogeny) October 24, 2023
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2 - 18Humans Develop Butt First (and other insights from the Tree of Life) October 31, 2023
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2 - 19Humans Didn't Evolve From Chimps (Human Evolution) November 07, 2023
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2 - 20What is Life Made of? (Carbon & Biological Molecules) November 14, 2023
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2 - 21A Love Letter to H2O: Water & pH November 28, 2023
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2 - 22How We See What We Can't See (Microscopes) December 05, 2023
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2 - 23A Tour of the Cell December 12, 2023
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2 - 24How Does Stuff Get Into Your Cells? (Cell Membranes) December 19, 2023
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2 - 25How Do Cells Communicate? (Cell Communication) January 09, 2024
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2 - 26How Do We Get Energy? (Chemical Reactions) January 16, 2024
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2 - 27How do cells get their energy? (Electron Transport Chain) January 23, 2024
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2 - 28Photosynthesis: The Original Solar Power January 30, 2024
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2 - 29Mitosis and the Cell Cycle February 06, 2024
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2 - 30Why Are All Humans Unique? Meiosis February 14, 2024
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2 - 31Why Your Cat Looks Like That: Genetics February 20, 2024
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2 - 32Nature? Nurture? Not so simple: Genetic Traits February 27, 2024
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2 - 33
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2 - 34How mRNA helped save lives: DNA Transcription March 12, 2024
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2 - 35How RNA gets translated into protein power March 19, 2024
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2 - 36How Genes Express Themselves March 28, 2024
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2 - 37Is drinking milk a Superpower? Genetic Mutations April 02, 2024
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2 - 38We’re full of bacteria! April 09, 2024
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2 - 39How Do Vaccines Work?: Viruses & Vaccines April 16, 2024
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2 - 40Algorithms Aren’t Just for TikTok: Bioinformatics April 23, 2024 -
2 - 41Why We Aren’t Just One Big Cell: Multicellular Function April 30, 2024 -
2 - 42Plants Are Hardcore: Plant Anatomy & Physiology May 07, 2024 -
2 - 43 -
2 - 44Why You’re More Than Goo: Animal Infrastructure May 21, 2024 -
2 - 45 -
2 - 46 -
2 - 47How Animals Do It: Sexual & Asexual Reproduction June 18, 2024 -
2 - 48Gender, Sex, & Sexuality: What’s the Difference? June 25, 2024 -
2 - 49 -
2 - 50The Dr. Sammy Show July 16, 2024
