science education resource

For K-12 Students • Educators • Homeschool Families • Naturalists


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The inner layer of the eye is the retina. The retina has millions of nerve endings, called, "photoreceptors" that receive what we see and send it on to the "optic disc," which sends the message onto the brain through the optic nerve.

retina has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.