This week we will be continuing our discussion of human evolution. Choose a trait that humans have that you are interested in and find a primary research paper (published within the last ten years) that traces it back in a phylogeny to a particular date (or tree location). Explain why the trait is beneficial (or not). Please be certain to give the full citation and DOI (if available). And please read through all the entries before submitting yours, so that you pick a novel article that has not yet been discussed!
For example, I chose the evolution of the appendix, which is shared by other mammal species besides us. In fact it has evolved independently 32 times! (Once in hominoids, so before the Orangutan-Gorilla split in our lineage). And what is interesting about this is that the appendix may indeed have a function – as a microbial refuge for the fauna that have evolved inside of our intestinal tracts! So, when a bad event (e.g. food poisoning and diarrhea) occurs, our microbes are expulsed from our guts, but those in the refuge of the appendix remain and repopulate our intestines! (Why is this a good thing? Better the microbe that helps you break down food and not the pathogen that will eat you from the inside out…).
Smith et al. 2013. Multiple independent appearances of the cecal appendix in mammalian evolution and an investigation of related ecological and anatomical factors. Comptes Rendus Palevol 12(6): 339-354. https://doi.org/10.1016/j.crpv.2012.12.001 (Links to an external site.)
So find a trait that you think is interesting, and trace its pathway back in time…
Search entries or author
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more