Sentences with phrase «small brain size»

By inactivating a gene linked to abnormally small brain size in humans, researchers have created the first ferret with a neurological mutation.

Features such as small brain size, slight build and very long arms link the creature to the australopithecines, especially A. africanus.

«This could account for small brain sizes of great apes despite their large body sizes.»

The famous cancer gene BRCA1 may also play a role in neurodevelopmental disorders such as microcephaly (right), which causes small brain size.

The paleoanthropological community does agree, broadly, the H. floresiensis small brain size is not due to a pathological condition, as was previously suggested by some.»

1470's face is very robust, and as large as that of a modern Cro - Magnon skull, despite a much smaller brain size, and the cranium has a markedly different shape.

Organoid experiments by others have, meanwhile, helped confirm that the Zika virus targets and kills oRG cells and other neural precursor cells, contributing to small brain size in infected infants.

In the study researchers selected guppies for large and small brain sizes.

«If chimps with their small brain size can conceptually deal with fire, then maybe we should rethink some of the earliest evidence for fire usage,» Pruetz says.

Anders Møller, an ecologist at University of Paris - Sud in Orsay, France, says he has found «strong effects» of radiation on animals at Chernobyl, such as a smaller brain size in birds.

«The tool - using features of the H. naledi hand, in combination with its small brain size, has interesting implications for what cognitive requirements might be needed to make and use tools, and, depending on the age of these fossils, who might have made the stone tools that we find in South Africa,» Tracy Kivell at the University of Kent in England, lead author of one of the two H. naledi papers, said in a statement.

«This is astonishingly young for a species that still displays primitive characteristics found in fossils about 2 million years old, such as the small brain size, curved fingers, and form of the shoulder, trunk, and hip joint,» Stringer said.

It seems safe to say that because of its small brain size (510 cc), no creationist would want to classify ER 1813 as human.

The anthropologist Ales Hrdlicka measured 12,000 skulls in the U.S. National Museums collections, and the smallest brain size was 910 cm3.

It should be pointed out that it's not only the small brain sizes which show the Dmanisi hominids aren't modern humans.

Like other animals that have been domesticated, dogs have a reduced cranial capacity — a smaller brain size — compared to their wild counterparts.