Other
Endowment for Human Development: The Virtual Human Embryo
Click on any embryo and start exploring one of the 23 stages of development during the 8-week embryonic period.
Other
Temple University Med School: Ventricular System Development (Early)
Upper-level explanation of early human ventricular system development. Provides interactive labeled diagrams and description of weeks 4, 5, and 6 in embryo development.
PBS
Nova: How Is Sex Determined?
This site focuses on the first 16 weeks of embryo development when the sex of the child is determined.
PBS
Pbs Learning Media: Embryo to Duckling
This video segment from NOVA: "The Shape of Things" follows the growth of a duck embryo, from a single fertilized egg cell to a complex, hatching duckling. [1:19]
OpenStax
Open Stax: Anatomy & Physiology: Blood Vessel Development, Fetal Circulation
Students learn about the development of blood vessels, and how this contrbutes to fetal circulation.
OpenStax
Open Stax: Anatomy & Physiology: Embryonic Development
Students learn about the stages of embryonic development that occur before implantation as well as the process of implantation.
PBS
Pbs Learning Media: Duck Development
This video segment from NOVA: "The Shape of Things" follows the growth of a duck embryo, from a single fertilized egg cell to a complex, hatching duckling. [2:43]
CK-12 Foundation
Ck 12: Biology: Embryo Growth and Development
[Free Registration/Login may be required to access all resource tools.] Describes how the embryo forms specialized cells and organs.
Exploratorium
Exploratorium: Which Embryo Is Human?
Scientists can use the research they gather from studying embryos of dogs, lizards, fish, and chickens to better understand human embryos. How is this possible? You'll find out with this Exploratorium resource.
Other
Story md.com: Conception to Birth
See the amazing process of human conception followed by the development of the embryo through each week of the pregnancy to the birth.
Other
The Visible Embryo
Discover the development of an embryo. Beginning with fertilization and progressing through each stage in the first trimester and continuing every two weeks for the second and third trimesters. This site is meant for medical students and...
McGraw Hill
Glencoe Biology: Human Development Before Birth: Self Check Quiz
This multiple-choice quiz on human fetal development allows students to get hints for each question and check their answers after submitting.
PBS
Pbs Nova: Guess the Embryo
Every animal starts out as a single, fertilized cell. What happens then? Launch an interactive that showcases four similar-looking embryos. Can you guess what each one of them actually is? Watch them develop.
Sophia Learning
Sophia: Embryonic and Fetal Development
This lesson will describe the stages of development of an embryo during pregnancy.
Khan Academy
Khan Academy: Frog Development Examples
How do you build a frog from a single cell? Learn how body axes are established and nerve tissue is induced in frog embryos.
CK-12 Foundation
Ck 12: Life Science: Pregnancy and Childbirth
[Free Registration/Login may be required to access all resource tools.] While a woman is pregnant, the developing baby may be called an embryo or a fetus. The embryo stage lasts until the end of the 8th week after fertilization. After...
Sophia Learning
Sophia: Fertilization and Early Development
This lesson will explain the processes involved in fertilization of a female egg. It is 5 of 5 in the series titled "Fertilization."
Exploratorium
Exploratorium: Single Cell to Embryo
Watch this brief animation of the process of a zebrafish egg developing from a single cell into an embryo in 50 hours. Click on other links to watch animations of a zebrafish cell division, migration and differentiation.
Northern Arizona University
Northern Arizona University: Embryos and Evolution
In this lesson, students study the embryos of different organisms at three stages of development to look for features that suggest a common ancestry.
CPALMS
Cpalms: Name That Embryo
In this lesson, learners will look at images of embryos from different organisms and identify similarities and differences between them to indicate possible evolutionary relationships. Includes PowerPoint and student handouts.
University of Wisconsin
University of Wisconsin: Amphibian Embryology
This tutorial goes into great detail describing the embryological development of amphibians. Written explanations, photos and quicktime movies are all included.
Other
Cte Online: Butte County Office of Education: Evolution and Embryos
[Free Registration/Login Required] A detailed lesson with downloadable PowerPoints and student handouts that examines how the study of comparative embryology provides support for the theory of evolution.
PBS
Nova Online: Windows on the Womb
There are descriptions of 8 different prenatal tests that can be used to track the health and development of a baby. The risks of the tests are also included.
PBS
Nova Online: Life's Greatest Miracle
The miracle of life is featured in this wonderful series of short videos and journal entries. A variety of topics are covered in this well written, authoritative piece.