martes, 10 de julio de 2012

Were the Hobbits’ Ancestors Sailors?

... Scientists will probably never know for certain what the Hobbit’s ancestors went through to get to Flores. Such ancient wooden boats are unlikely to be preserved and there’s no way to prove it was a freak accident.
But recently a pair of researchers offered a novel way of assessing the issue. Ecologist Graeme Ruxton of the University of St. Andrews in Scotland and biologist David Wilkinson of Liverpool John Moores University in England simulated population growth over time of planned colonizations versus accidental castaways to see which scenario could lead to successful inhabitations of an island. They reported their results in the Journal of Human Evolution.

The premise of the model is that a group of hominids reach an island. The hominids mate monogamously and each year there is a set probability that a female of a certain age will give birth. There’s also a given probability that individuals in the population will die, based on age and sex... Hominid Hunting

No hay comentarios: