Http://www. physics. unl http://www.physics.unl.edu/~fulcrum/ Department of Physics & Astronomy University of Nebraska-Lincoln Lincoln NE 68588-0111 fulcrum2@unl.edu.

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http://www. physics. unl http://www.physics.unl.edu/~fulcrum/ Department of Physics & Astronomy University of Nebraska-Lincoln Lincoln NE 68588-0111 fulcrum2@unl.edu 402-472-8685 Embryology

Animals that lay eggs Embryology for Humann’s 3rd Grade class—a supplement for the 3rd Grade Embryology Curriculum

Birds

Bird eggs come in all shapes and colors

Very large Very small

The ostrich lays the largest eggs

Iguanas, monitors and alligators all lay eggs Reptiles Iguanas, monitors and alligators all lay eggs

Reptile eggs are soft and squishy

Turtles lay eggs too!

Mammals Echidna Two mammals lay eggs Both live in Australia

Platypus