21.   A competing model holds that humans evolved independently in Africa and east Asia.

22.   A museum poll last year found that nearly half the adults surveyed do not think humans evolved from earlier species.

23.   Ancient humans evolved a certain level of anxiety to cope with danger and survive against wild animals when hunters barely had the advantage of rocks and sharp sticks.

24.   Creationism is the belief that a divine power created the universe in six days, while the theory of evolution holds that humans evolved from more primitive species.

25.   The announcement also went against current theories about how humans evolved and migrated across the continents.

26.   The theory of evolution holds that humans evolved from more primitive species.

27.   They are also a blow to the theory that modern humans evolved simultaneously in Africa, Europe and Asia from multiple early humans.

28.   Their work suggests that humans have evolved a complex system for detecting the wide array of bitter-tasting compounds.

29.   Humans evolved from the land-based Melanesians to the ocean-based, voyaging Polynesians.