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The Best Episodes of Crash Course Biology

Every episode of Crash Course Biology ranked from best to worst. Let's dive into the Best Episodes of Crash Course Biology!

And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet...
Genre:Documentary
Network:YouTube

Best Episodes Summary

"That's Why Carbon Is A Tramp" is the best rated episode of "Crash Course Biology". It scored 7.5/10 based on 7 votes. Directed by N/A and written by N/A, it aired on 1/30/2012. This episode scored NaN points higher than the second highest rated, "Water - Liquid Awesome".

  • That's Why Carbon Is A Tramp
    7.5/107 votes
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    #1 - That's Why Carbon Is A Tramp

    Season 1 Episode 1 - Aired 1/30/2012

    And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis? It's all contained within.

    Director: N/A

    Writer: N/A

  • Water - Liquid Awesome
    NaN/100 votes
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    #2 - Water - Liquid Awesome

    Season 1 Episode 2 - Aired 2/6/2012

    Hank teaches us why water is one of the most fascinating and important substances in the universe.

    Director: N/A

    Writer: N/A

  • Biological Molecules - You Are What You Eat
    NaN/100 votes
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    #3 - Biological Molecules - You Are What You Eat

    Season 1 Episode 3 - Aired 2/13/2012

    Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.

    Director: N/A

    Writer: N/A

  • Eukaryopolis - The City of Animal Cells
    NaN/100 votes
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    #4 - Eukaryopolis - The City of Animal Cells

    Season 1 Episode 4 - Aired 2/20/2012

    Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies.

    Director: N/A

    Writer: N/A

  • In Da Club - Membranes & Transport
    NaN/100 votes
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    #5 - In Da Club - Membranes & Transport

    Season 1 Episode 5 - Aired 2/27/2012

    Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.

    Director: N/A

    Writer: N/A

  • Plant Cells
    NaN/100 votes
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    #6 - Plant Cells

    Season 1 Episode 6 - Aired 3/5/2012

    Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to & different from animal cells.

    Director: N/A

    Writer: N/A

  • ATP & Respiration
    NaN/100 votes
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    #7 - ATP & Respiration

    Season 1 Episode 7 - Aired 3/12/2012

    In which Hank does some push ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP.

    Director: N/A

    Writer: N/A

  • Photosynthesis
    NaN/100 votes
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    #8 - Photosynthesis

    Season 1 Episode 8 - Aired 3/19/2012

    Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.

    Director: N/A

    Writer: N/A

  • Heredity
    NaN/100 votes
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    #9 - Heredity

    Season 1 Episode 9 - Aired 3/26/2012

    Hank and his brother John discuss heredity via the gross example of relative ear wax moistness.

    Director: N/A

    Writer: N/A

  • DNA Structure and Replication
    NaN/100 votes
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    #10 - DNA Structure and Replication

    Season 1 Episode 10 - Aired 4/2/2012

    Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells.

    Director: N/A

    Writer: N/A

  • DNA, Hot Pockets, & The Longest Word Ever
    NaN/100 votes
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    #11 - DNA, Hot Pockets, & The Longest Word Ever

    Season 1 Episode 11 - Aired 4/9/2012

    Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins.

    Director: N/A

    Writer: N/A

  • Mitosis: Splitting Up is Complicated
    NaN/100 votes
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    #12 - Mitosis: Splitting Up is Complicated

    Season 1 Episode 12 - Aired 4/16/2012

    Hank describes mitosis and cytokinesis - the series of processes our cells go through to divide into two identical copies.

    Director: N/A

    Writer: N/A

  • Meiosis: Where the Sex Starts
    NaN/100 votes
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    #13 - Meiosis: Where the Sex Starts

    Season 1 Episode 13 - Aired 4/23/2012

    Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms.

    Director: N/A

    Writer: N/A

  • Natural Selection
    NaN/100 votes
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    #14 - Natural Selection

    Season 1 Episode 14 - Aired 4/30/2012

    Hank guides us through the process of natural selection, the key mechanism of evolution.

    Director: N/A

    Writer: N/A

  • Speciation: Of Ligers & Men
    NaN/100 votes
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    #15 - Speciation: Of Ligers & Men

    Season 1 Episode 15 - Aired 5/7/2012

    Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.

    Director: N/A

    Writer: N/A

  • Animal Development: We're Just Tubes
    NaN/100 votes
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    #16 - Animal Development: We're Just Tubes

    Season 1 Episode 16 - Aired 5/14/2012

    Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes.

    Director: N/A

    Writer: N/A

  • Evolutionary Development: Chicken Teeth
    NaN/100 votes
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    #17 - Evolutionary Development: Chicken Teeth

    Season 1 Episode 17 - Aired 5/21/2012

    Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship, and to discover how those processes evolved.

    Director: N/A

    Writer: N/A

  • Population Genetics: When Darwin Met Mendel
    NaN/100 votes
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    #18 - Population Genetics: When Darwin Met Mendel

    Season 1 Episode 18 - Aired 5/28/2012

    Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.

    Director: N/A

    Writer: N/A

  • Taxonomy: Life's Filing System
    NaN/100 votes
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    #19 - Taxonomy: Life's Filing System

    Season 1 Episode 19 - Aired 6/4/2012

    Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy.

    Director: N/A

    Writer: N/A

  • Evolution: It's a Thing
    NaN/100 votes
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    #20 - Evolution: It's a Thing

    Season 1 Episode 20 - Aired 6/11/2012

    Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization.

    Director: N/A

    Writer: N/A

  • Comparative Anatomy: What Makes Us Animals
    NaN/100 votes
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    #21 - Comparative Anatomy: What Makes Us Animals

    Season 1 Episode 21 - Aired 6/18/2012

    Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.

    Director: N/A

    Writer: N/A

  • Simple Animals: Sponges, Jellies, & Octopuses
    NaN/100 votes
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    #22 - Simple Animals: Sponges, Jellies, & Octopuses

    Season 1 Episode 22 - Aired 6/25/2012

    Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses and squid. We differentiate them by the number of tissue layers they have, and by the complexity of those layers.

    Director: N/A

    Writer: N/A

  • Complex Animals: Annelids & Arthropods
    NaN/100 votes
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    #23 - Complex Animals: Annelids & Arthropods

    Season 1 Episode 23 - Aired 7/2/2012

    Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects.

    Director: N/A

    Writer: N/A

  • Chordates
    NaN/100 votes
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    #24 - Chordates

    Season 1 Episode 24 - Aired 7/9/2012

    Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal sarcopterygian osteichthyen gnathostomal vertebrate cranial chordate.

    Director: N/A

    Writer: N/A

  • Animal Behavior
    NaN/100 votes
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    #25 - Animal Behavior

    Season 1 Episode 25 - Aired 7/16/2012

    Hank and his cat Cameo help teach us about animal behavior and how we can discover why animals do the things they do.

    Director: N/A

    Writer: N/A