Home Forums University of Northern Colorado Natural and Health Sciences Mammalogy BIO334_534: Critical Thinking Exercise 2

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
  • BookBuddy_Admin
    Post count: 4


    Metatherians have been accused of being inferior to Eutherian mammals by some. What is the evidence for such an opinion? Do you agree with that assessment?


    What does the fact that there are still living representatives of Prototherians tell us about the evolutionary pathway of mammals from therapsids? What might we assume if we only had fossils of monotremes to study?

    Post count: 4

    Much smaller in general size. Not placental mammals. Less diverse. Very short gestation periods. Less chromosomes. Less evolutionary flexibility. I agree due to the large differences between clades, indicating Eutherians are far removed from Metatherians.

    Prototherians share a large number of ancestral traits with therapsids. Theria came from reptiles.

Viewing 2 posts - 1 through 2 (of 2 total)
  • The forum ‘Natural and Health Sciences’ is closed to new topics and replies.