…o permit the evolution of our multicellular organisms. Several major extinction events passed before we had the Cambrian explosion, the Chixcalub impact, the die-off of the dinosaurs, and the ascent of the mammals. Only over very long periods of geological and climate stability c…
…ent Semester Instructors (0) BIOLOGY-CLUB-L 333 Biology Club (333) BIOLOGY-GRAD-EVENTS-L 2 Biology Grad Events! (2) BIOLOGY-GRADUATE-SOCIAL-L 54 Biology grad students social and other events. (54) BIOLOGY-MAJORS-L 1044 Biology Majors (1044) BIOLSERV-L 322 Biology Graduate Student…