Lesson summary for:
Understanding evolutionary trees
Many disciplines within biology (and many basic biology texts) have come to depend on evolutionary trees. Get the basics you need to understand and interpret these key diagrams.
This article appears at SpringerLink.
Evolution: Education and Outreach
This article is written for teachers and is fairly long, but it can easily be understood by undergraduates. It explicitly corrects common misconceptions about phylogenies.
- Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- Evolution does not consist of progress in any particular direction.
- Evolutionary trees (i.e., phylogenies or cladograms) portray hypotheses about evolutionary relationships.
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