11. The syndrome is characterized by decelerated maturation ( neoteny ), incomplete morphogenesis ( vestigia ) and atavisms . 12. Its supporters may say what they like, but a North Atlantic military alliance is a Cold War atavism . 13. One factor, however, seems clear; atavism is not in evidence so far as colour is concerned. 14. This suggests that the atavism could recall something earlier than the emergence of hominoid apes about 25 million years ago. 15. These blind cave fish are unwittingly helping scientists better understand one of the most fascinating phenomena in evolution : atavisms . 16. Atavisms are supposedly vanished evolutionary traits that, from time to time, reappear in a plant or animal species.17. Atavism is a key term in Joseph Schumpeter's explanation of World War I in 20th century liberal Europe.18. Apart from mutations reactivating dormant genes, atavisms appear often during embryonic development and then disappear before birth, said Hall. 19. In fact, cancer has been postulated to represents some sort of reversion to a more primitive phenotype an atavism . 20. Biologists have observed many other mutations that they suggest fall into this class of atavisms , the reappearance of normally dormant traits.
