I jumped into this class with high hopes and expectations, watched (and rewatched) the video lectures (which I enjoyed), read all the corresponding articles (that were still available), and for what? Absolutely nothing. Nice job Coursera with the "upgrade to submit your quiz". As a teacher and parent my time is limited. I have now clearly invested my time in something that is ultimately nothing more than a bait and switch.

I really enjoyed this course, more so in fact than a lot of others I've taken. The course content consisted of both short videos and online readings which were manageable from a time standpoint. I liked the fact the videos were not overly long or wearisome. The instructor is nice gentleman with a likeable sense of humor and presented the videos in a concise and friendly manner. But the thing I liked the most about this course is that to me it was very interesting and even more informative. Again, definitely one of the more interesting courses I've done. I highly recommend it to anyone interested in the subject!

One of the, if not the best course I've had the pleasure of taking so far here on Coursera. Amazing content and content organization, and Professor Martin is not only an engaging lecturer, but a hilarious speaker too! What would personally make this the /PERFECT/ course would be the inclusion of downloadable course notes, similar to those in University of Alberta's MOOCs. Hope more people would get to experience this really remarkable course!

I really liked the style and organization of this course, and the content was excellent. And the lecturer was such fun! I love the uniting of deep time history with modern environmental studies, two things that often get segregated from each other. The only drawback I can point to is the peer review project, which depends entirely on someone else's availability in order to finish the course, but my project was reviewed pretty quickly.

Thank you for approving my financial aid for this course Extinctions:Past,Present,and Future.I learnt a lot from this course.All the topics are well explained and the flow of each lessons are organized.I am interested in dinosaurs and fossils and this course really caught my attention.Again,thank you for this wonderful and knowledgeable discussion.

Great course, never boring. The lecturer is very engaging. The lectures are very fun to watch. I learned a lot and enjoyed the diverse reading materials.

For the assignment I would suggest to allow for half points (instead of just 0 or 1), in case that some of the issues are addressed, but not all of them.

I really liked this course.

I'm very disappointed that i could not submit the final paper and receive a grade because I did not pay for a certificate. If I did the work all the way through the course and took the time and effort to prepare the final assigment I should be allowed to submit it

Fantastic course. Informative, fun - made me wish the course was longer. I didn't love the peer-reviewed aspect of the assignment, but did enjoy getting to actually write an assignment instead of just doing quizzes. I selfishly hope the instructor will offer more courses on Coursera.

very informative and presented in an understandable manner. Professor used a lot of humor. Makes me want to use all the information in my own classes as teacher and have the students think about the future. Thank you for the wonderful lectures !!

Bravo! A fascinating course, thank you. Dr. Martin speaks clearly and informatively with humour and insight. So many interesting subjects covered under the umbrella of "extinctions".

Excellent lecturer and selection of articles. Lecturer was very engaging and clearly is very passionate about the subject of this course.

It has been a truly wonderful and highly informative course, I love it! Would recommend to anyone with an interest to try!

Excellent course and entertaining as well. I "finished" this course, but not for credit.

Loved it! everybody should do this course to understand what we are living nowadays

Excellent content and delivery within a very condensed course length.

Terrific! Enlightening! Entertaining!

Thank you so much!

great class, learned alot of new info with the extinctions

very interesting and very good course..congratulations!

A wonderful class with a charming professor.

Amé este curso, muy interesante y completo!

Great course with a very inspiring host.

Very insightful and super cool teacher.

an amazing and interesting course

Thanks for this great lesson !

Great course. Highly recommend