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Animals: Life Cycles

These sites focus on the stages animals go through as they mature. Learn how insects, fish, amphibians, birds, mammals, and humans develop. See videos of animals when they are developing embryos. Watch a chicken hatch from its egg. There are many diagrams that visually represent the life cycle.


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This site is about the life cycle of Salmon including a printout. NOTE: This site includes Google ads.
Here is a life cycle chart with descriptions of each stage of a frog's life. NOTE: There is a link to an online store at the bottom of the page.
Find out the conditions frogs need for breeding and how to identify frog eggs from different species.
Click on a stage of the gypsy moth life cycle on the picture below to see a picture and learn more about it.
Follow the development of the chicken embryo from day one to hatching.
Watch a time-lapse video of a hatching chicken. The large video file requires QuickTime and loads quickly.
This simple diagram shows an egg, nymph, and an adult insect. Click on "Back" and read "Insect Life Cycle" for more information about the stages.
Read about the baby, adolescent, and adult stages of an elephant's life. Click on the stage names for more in-depth information about each part of the life cycle. NOTE: This site includes Google ads.
Print out insect, amphibian, and fish life cycle sheets that have diagrams of the stages. NOTE: This site includes Google ads.
A diagram and text tell about the stages of a developing jellyfish.
Print out this page that has a diagram of a butterfly's life cycle, plus printable drawings of each stage.
This worksheet can be printed out and filled in by students.
You can watch a human, pig, chicken, or fish embryo as it develops. Choose the type of video format you want to view it.

Education Standards


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