Lesson summary for:
Evo in the news: The new shrew that's not
This news brief from March of 2008 describes scientists' discovery of a new mammal species, a giant elephant shrew. Though elephant shrews resemble regular shrews, recent genetic evidence suggests that elephant shrews actually sprang from a much older (and perhaps more charismatic) branch of the tree
of life - the one belonging to elephants and their relatives.
UC Museum of Paleontology
This article includes a video podcast, a set of discussion and extension questions for use in class, and hints about related lessons that might be used in conjunction with this one. Get more tips for using Evo in the News articles in your classroom.
- Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- Geological change and biological evolution are linked.
- Tectonic plate movement has affected the evolution and distribution of living things.
- An organism’s features reflect its evolutionary history.
- Similarities among existing organisms provide evidence for evolution.
- A hallmark of science is exposing ideas to testing.
- Scientists test their ideas using multiple lines of evidence.
- Scientists can test ideas about events and processes long past, very distant, and not directly observable.
- Scientists use multiple research methods (experiments, observational research, comparative research, and modeling) to collect data.
- Our knowledge of the evolution of living things is always being refined as we gather more evidence.
- Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa.
- Classification is based on evolutionary relationships.
- Not all similar traits are homologous; some are the result of convergent evolution.
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