Lesson plan

Headstander

, (striped headstander) A headstander is any of several species of South American fish, including Anostomus ternetzi, Anostomus anostomus (family Anostomidae) and members of genus Chilodus from the family Chilodidae. The name derives from their habit of swimming at a 45° angle, head pointed downwards, as if "standing on their heads".

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Article summary

, (striped headstander) A headstander is any of several species of South American fish, including Anostomus ternetzi, Anostomus anostomus (family Anostomidae) and members of genus Chilodus from the family Chilodidae. The name derives from their habit of swimming at a 45° angle, head pointed downwards, as if "standing on their heads".

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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