SciShow
Chimera Cats and Your Mom
Hank talks about chimeras, and why Venus the cat probably isn't one - but your mom might be!
SciShow
Hilde Mangold and the Organizer of Life | Great Minds
Experiments conducted by Hilde Mangold and Hans Spemann taught us how an animal develops from a small ball of cells into an organism with distinct, functioning parts. The work was a foundational contribution to the field of developmental...
SciShow
Chimera Cats and Your Mom
Hank talks about chimeras, and why Venus the cat probably isn't one - but your mom might be
Amoeba Sisters
Asexual and Sexual Reproduction
Join the Amoeba Sisters as they compare and contrast asexual reproduction with sexual reproduction. Table of Contents: Intro 00:00 Asexual Reproduction 0:59 Sexual Reproduction 2:21 Disadvantages and Advantages of Sexual Reproduction...
Amoeba Sisters
How Cells Become Specialized
How do cells in your body differentiate into other types of cells? Explore cell specialization featuring stem cells and their role in cell differentiation.
Crash Course
Reproductive System part 3 Sex & Fertilization Crash Course A&P 42
After weeks of discussion of human reproduction, today we arrive at the main event: THE SEX. Hank explains the four phases of the human sexual response, how a sperm finds and fertilizes an egg, creating a zygote, and how different types...
Amoeba Sisters
Speciation
Explore speciation with The Amoeba Sisters. This video discusses sympatric and allopatric speciation and covers several types of isolation types including behavioral, temporal, and habitat isolations. Table of Contents: Intro 00:00...
SciShow
Twins x Twins = Twins?
At SciShow, we ask the tough questions. Today we explore the answer to the question "if identical twin brothers married identical twin sisters, would their offspring be identical?"
Bozeman Science
Speciation
Paul Andersen explains how reproductive isolation can eventually lead to speciation. Three main barriers to gene flow are included: geographic, pre-zygotic and post-zygotic. Both allopatric and sympatric speciation are discussed. A brief...
Bozeman Science
The Reproductive System
Paul Andersen starts with a brief description of asexual and sexual reproduction. He explains how meiosis ensures variation in the next generation. He describes the important structures in the male and female reproductive system. He...
SciShow
Gynandromorphs: Dual-Sex Animals
SciShow explores one of the more rare and unusual results of sexual reproduction: gynandromorphy, in which an animal is part male and part female.
SciShow
How Pregnancy Is Like Growing an Alien Inside You
Pregnancy is quite a feat. The embryo manages to develop, get food, and get rid of their waste, all while staying under the radar of their parent’s immune system.
MinuteEarth
Why You Can't Build A Clone Army... (Yet)
Because of the way genetic reprogramming works, it’s hard to make one clone based on an adult cell, and it’s almost impossible to make a second-generation one.
Amoeba Sisters
Chromosomes and Karyotypes
Explore chromosomes and karyotypes with the Amoeba Sisters! This video explains chromosome structure, how chromosomes are counted, why chromosomes are important, and how they can be arranged in a karyotype! This video also tackles a few...
Crash Course
Reproductive System, part 3 - Sex & Fertilization: Crash Course A&P
After weeks of discussion of human reproduction, today we arrive at the main event: THE SEX. Hank explains the four phases of the human sexual response, how a sperm finds and fertilizes an egg, creating a zygote, and how different types...
Crash Course
Animal Development: We're Just Tubes - Crash Course Biology
Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes.
Crash Course
Reproductive System, part 4 - Pregnancy & Development: Crash Course A&P
We've reached the grand finale of our four part series on human reproduction: BABIES! Today Hank walks you through the stages of pregnancy, beginning with how a zygote develops into blastomeres to a morula to a blastocyst and finally to...
Curated Video
Zygote
The cell produced by the fusion of an egg and a sperm at fertilisation. The zygote contains DNA from both the male and female parents, providing all the genetic information required for a new individual. A Twig Science Glossary Film. Key...
Curated Video
Fusion
The joining together of two or more distinct parts to make a unified whole. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
The human cell
Go back to the beginning of your life and find out how you were created. Life processes - Living processes - Cells Learning Points Human cells consist of a membrane, cytoplasm and a nucleus. A zygote is a single cell formed by the fusion...
Curated Video
Reproduction
Reproduction takes place in all living things, but what do we mean by reproduction? Life processes - Living processes - Reproduction Learning Points Reproduction is when living things produce young to ensure the survival of a species....
Curated Video
Reproduction and Continuity of Species: Reproduction in Humans
By the end of this learning object, the student will be able to: Summarize the main points of the human reproduction.86741
Curated Video
Fertilization of the Sperm and Egg in Humans - How babies are made!
Fertilization. How does it happen? In this video, we discuss the male and female reproductive systems and how they work together to create an entire new human.
Curated Video
How Twins are Made | Identical, Fraternal, and Others??
Do you know how twins are made? I was surprised to learn how many people thought they knew but didn't. In this video, I clear up any confusion related to twinning (from a biological perspective). Watch this video and impress your friends...