Lessons below address this concept: Features sometimes evolve to function in new ways.
Found 5 records.

Browse concepts for grades: K-2 | 3-5 | 6-8 | 9-12

 
Lesson Title (Description) Grade Level Lesson Type
Evo in the news: Quick bites and quirky adaptations
Trap-jaw ants made headlines with the record-breaking speed of their jaws and a quirky behavior: flinging themselves into the air using the power of their mandibles. This news brief from October 2006 reveals the evolutionary story behind the headlines.
9-12 Article
Evo in the news: What has the head of a crocodile and the gills of a fish?
This news brief, from May 2006, reviews what is likely to be the most important fossil find of the year: Tiktaalik helps us understand how our own ancestors crawled out of the water and began to walk on dry land.
9-12 Article
Interactive investigation: The arthropod story
This interactive investigation delves into the amazing world of the arthropods and examines their success and their evolutionary constraints.
9-12 Web activity
Similarities and differences: Understanding homology and analogy
This interactive investigation explains what homologies and analogies are, how to recognize them, and how they evolve.
9-12 Tutorial
Webcast: The science of evolution
Evolutionary biologist Sean Carroll introduces the field of Evo-Devo, using examples from fruit flies, butterflies, and icefish to explain how this research is transforming our understanding of evolution.
This video is available from the New York Times website.
9-12 Video
 


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Spanish translation of Understanding Evolution For Teachers from the Spanish Society of Evolutionary Biology.