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Saturday, November 9, 2019

Relatively quick origin for Homo floresiensis pigmies: 150 to 675 generations to shrink in size


The Flores Island Homini shrunk in height over a relatively short period of time according to an article published on October 9, 2019:


The paper written by José Alexandre F. Diniz-Filho, Lucas Jardim, Thiago F. Rangel, Phillip B. Holden, Neil R. Edwards, Joaquín Hortal, Ana M. C. Santos and Pasquale Raia (Quantitative genetics of body size evolution on islands: an individual-based simulation approach - 15Biol. Lett. http://doi.org/10.1098/rsbl.2019.0481), simulated models to explain how hominins could have reduced their size over time:


"We applied the model to evaluate body size differentiation in the pigmy extinct hominin Homo floresiensis, showing that dwarfing may have occurred in only about 360 generations (95% CI ranging from 150 to 675 generations). This result agrees with reports suggesting rapid dwarfing of large mammals on islands, as well as with the recent discovery that small-sized hominins lived in Flores as early as 700 kyr ago. Our simulations illustrate the power of analysing ecological and evolutionary patterns from an explicit quantitative genetics perspective."



Patagonian Monsters - Cryptozoology, Myths & legends in Patagonia Copyright 2009-2019 by Austin Whittall © 

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