Sentences with phrase «evolutionary studies indicate»

Comparative evolutionary studies indicate that human infants are poorly neurologically developed at birth, and thus require close physical contact for safety, physiological regulation and frequent feeding.

Not exact matches

If the finding is correct, it indicates that the relationship between humans and Neandertals goes further back and is more complicated than scientists supposed, says Sarah Tishkoff, an evolutionary geneticist at the University of Pennsylvania who was not involved in the study.

Data published by the International Human Genome Sequencing Consortium indicate that somewhere between 113 and 223 genes present in bacteria and in the human genome are absent in well - studied organisms — such as the yeast Saccharomyces cerevisiae, the fruit fly Drosophila melanogaster and the nematode Caenorhabditis elegans — that lie in between those two evolutionary extremes.

«The findings of the study indicate that simple causal relationships between the evolution of brain size, tool use and tooth size are unlikely to hold true when considering the complex scenarios of hominin evolution and the extended time periods during which evolutionary change has occurred,» said Aida Gómez - Robles, lead author of the paper and a postdoctoral scientist at GW's CASHP.

Evolutionary psychologists have been long - interested in male preferences for female traits, because those traits are thought to indicate a woman's fertility.2 Whereas most studies focus on what makes specific body traits attractive, such as the waist - to - hip ratio, body mass index, 3 or breast shape and size, 4,5 little research has looked at individual preferences for specific traits.