For this challenge, you can utilize observations you’ve made in the past or go outdoors again. If you’d like to work on this challenge as one of your four required for the Naturalist Perspective part of the course, you may submit the blog post for it by the end of the day on Dec. 6th.
- Pick an organism that you’ve seen at Site Alpha, Beta or Gamma.
- Perform some informational research to see if you can find out the evolutionary history of this organism. Try to answer these questions in the course of your research:
- How old is this species or its family, evolutionarily speaking? Apidae family of bees, for example, arose about 87 million years ago, while it’s thought that the honey bee we know today came into being around 2-3 million years ago; contrast that with the Deep Look video below, which tells us that sea otters as a species are only about 1.6 million years old.
- What species are this organism most closely related to? What characteristics do these species have in common?
- What kind of common ancestor gave rise to all these species? This might be a challenging question to answer.
- When did that common ancestor arise? The common ancestor of all bees, for example, appeared 135 million years ago.
- Write a blog post summarizing what you’ve been able to find out.