Flowers and Trees

Lab (Workbook): Flowers and Trees

Introduces students to evolutionary trees using an interactive simulation of Columbine flower diversification. Students observe Columbine populations split and diverge while an expanding evolutionary tree illustrates each population's history. Students further learn to interpret evolutionary trees by creating their own and reconstructing the history of mystery populations. Suitable for both introductory and advanced biology and evolution courses.
View sample screen

Level: Intro or Advanced
Key Concepts: Evolutionary Trees; Neutral Evolution; Phylogenetic Reconstruction; Tree-thinking
Courses: Evolution; Intro Bio: Eco/Evo/Genetics; Intro Bio: Non-majors; Macroevolution


"I did tell you that I like EvoBeaker very much.  The programs compliment each other really well and I'd love to work with several of them that highlight common ancestor, but I am limited in the time I have. I am going to try to fit in two of them, near the end of the semester.  I think 'Flowers and Trees' with its phylogenetic trees and either Dogs or HIV, to get the sequence comparisons. "
Dr. Robert Hodson, University of Delaware, 600 Student Introductory Biology Class
"I was very impressed with the lab exercises when I ran through them last night — they are not only fun, but move seamlessly through the logic of building cladograms. I will definitely incorporate the lab into my future classes. "
Dr. Robin Andrews, Virginia Tech University
"I just wanted to let you know that we've completed our first lab of the three as of yesterday [Flowers and Trees]. The students thought it was "easy" and yet, were challenged as they continued to work through the exercises. It was not only promising, but reinvigorating for the Teaching Assistants who had taught it prior to this semester. Thank you!! We're looking forward to completing the next one soon."
Dr. Faye Farmer, Arizona State University, Introductory Biology Course

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