query: Why do living fossils like crocodiles remain so constant and not evolve?
positive_passages.docid: 149322
positive_passages.text: Reasons why living fossils exist?
negative_passages.docid: 101527
negative_passages.text: Why is it that a force is not required for a body to move at constant velocity?
negative_passages.docid: 105613
negative_passages.text: Why didn't Briar Cudgeon disappear from the Time Stop?
negative_passages.docid: 13675
negative_passages.text: Human Evolution in Modern Times
negative_passages.docid: 17541
negative_passages.text: Evolution of diversity and extinction resistance
negative_passages.docid: 127885
negative_passages.text: Absolutely convergent but not convergent
negative_passages.docid: 108019
negative_passages.text: Why, specifically, does each generation, on average, improve upon the design of the species rather than degrade it?
negative_passages.docid: 104277
negative_passages.text: Why do carnivores evolve?
negative_passages.docid: 135273
negative_passages.text: Is there an in universe explanation why a replicator cannot create living organisms?
negative_passages.docid: 141942
negative_passages.text: Why were dinosaurs not as smart as humans are?
negative_passages.docid: 2887
negative_passages.text: How can natural selection occur at species level whilst not occuring at the individual level?
negative_passages.docid: 31189
negative_passages.text: Why is it thought that silicon based lifeforms never flourished on Earth?
negative_passages.docid: 22889
negative_passages.text: Why normal acceleration doesn't bring a change in speed?
negative_passages.docid: 57244
negative_passages.text: What is the meaning of 'permanent' in description of True Polymorph?
negative_passages.docid: 16869
negative_passages.text: Why is the Continuum Hypothesis (not) true?
negative_passages.docid: 117893
negative_passages.text: Have there been any theories put forward as to the reasons behind Temperature-Dependant Sex Determination in reptiles?
negative_passages.docid: 100760
negative_passages.text: How do we know that radioactive decay rates are constant over billions of years?