Ancient mammals enjoyed a release from competition when the dinosaurs became extinct. Should hum...

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Ancient mammals enjoyed a release from competition when the dinosaurs became extinct. Should humans work to ensure that such releases from competition continue to occur for us or for other species?
(a) No, because it is impossible to predict which species will become dominant if other species become extinct
(b) No, because the species that become dominant will cause the extinction of humans
(c) Yes, because the organisms that are released from competition will always form more new species than the number that went extinct
(d) Yes, because new species that evolve are always better organisms than those that went extinct
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