IMPORTANT DATES

Fall 2020

  • Term Dates: Oct. 5 - Nov. 20, 2020
  • Additional Registration Period:
     begins Friday, Sep. 11, after 9 am, ends two days prior to each course start date.

Winter 2021

  • Term Dates: Jan. 11 - Feb. 26, 2021
  • Course guide in homes and on website:
    week of Nov. 23
  • Request Period: Nov. 23 - Dec. 7, 4 p.m.
  • Allocation Period: Dec. 8 - Dec. 10
  • Additional Registration Period:
    begins Dec. 11, after 9:00 a.m.; ends two days prior to each course start date

Spring 2021

  • Term Dates: Mar. 22 - May 7, 2021
  • Proposal Submission Deadline: Nov. 25
  • Course guide in homes and on website:
    week of Feb. 8
  • Request Period: Feb. 8 - Feb. 22, 4 p.m.
  • Allocation Period: Feb. 23 - 25
  • Additional Registration Period: begins Feb. 26, after 9 a.m.; ends two days prior to each course start date
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Request/Register for Courses and Membership > Science & Technology

20458 Mass Extinctions OLLI Scholar Course   NEW!

Extinction is the fate of all species, but sometimes species become extinct in near simultaneous geologic time. This class will survey five prehistoric mass extinctions and the ongoing Holocene extinction. We will discuss what constitutes a species, how a species develops through time and space, and what causes different species to go extinct. We also will explore what we know about mass extinctions, what led up to those events, what followed, and how extinctions change the face of the planet.

 

This course is now in session. To inquire about registration email: olli@umn.edu

 

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