University of Guelph
Department of Animal and Poultry Science: Digestive System
The main focus here is on the comparative anatomy of animals raised for meat. Beware of the photographs, as they are dissection photos.
Other
Plant and Animal Evolution: Homology
In this informative site, homologous is defined and the wings of birds and bats are compared to clarify the concept.
Howard Hughes Medical Institute
Hhmi: Bio Interactive: Explore Your Inner Animals
Did you know parts of our body was inherited from distant animal ancestors? In this interactive students will investigate different anatomical features of the human body to reveal our evolutionary history. Learn how humans share...
PBS
Pbs Learning Media: Seeing Through Camouflage
This interactive feature from the NOVA: "Leopards" Web site presents a wide variety of ways in which animals use coloration to their advantage.
PBS
Pbs Learning Media: Bird Beak Gallery
This collection of images of ten different birds illustrates the diversity of bird beaks.
Discovery Education
Discovery Education: The Eye: Structure and Function
In this lesson, learners learn about the structure and function of the human eye and research how it compares to animal eyes. They will then choose an eye, write a description, and make an illustration of it, which other students will...