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Following genetic footprints out of Africa: First modern humans settled in Arabia

05:31 27-01-2012; source: www.sciencedaily.com

A new study, using genetic analysis to look for clues about human migration over sixty thousand years ago, suggests that the first modern humans settled in Arabia on their way from the Horn of Africa to the rest of the world.

Following genetic footprints out of Africa

04:31 27-01-2012; source: www.sciencedaily.com

A new study, using genetic analysis to look for clues about human migration over sixty thousand years ago, suggests that the first modern humans settled in Arabia on their way from the Horn of Africa to the rest of the world.

Life beyond Earth? Underwater caves in Bahamas could give clues

20:31 26-01-2012; source: www.sciencedaily.com

Discoveries made in some underwater caves by researchers in the Bahamas could provide clues about how ocean life formed on Earth millions of years ago, and perhaps give hints of what types of marine life could be found on distant planets and moons.

Dawn of social networks: Ancestors may have formed ties with both kin and non-kin based on shared attributes

22:31 25-01-2012; source: www.sciencedaily.com

Ancient humans may not have had the luxury of updating their Facebook status, but social networks were nevertheless an essential component of their lives, a new study suggests. The study's findings describe elements of social network structures that may have been present early in human history, suggesting how our ancestors may have formed ties with both kin and non-kin based on shared attributes, including the tendency to cooperate. According to the paper, social networks likely contributed to the evolution of cooperation.

More than 7,500-year-old fish traps found in Russia

20:31 25-01-2012; source: www.sciencedaily.com

Archeologists have documented a series of more than 7,500-year-old fish seines (nets) and traps near Moscow. The equipment found, among the oldest in Europe, displays a great technical complexity. The survey will allow us to understand the role of fishing among the European settlements by early Holocene (10,000 years ago), especially in those areas where inhabitants did not practice agriculture until nearly the Iron Age.

Winged dinosaur Archaeopteryx dressed for flight

22:31 24-01-2012; source: www.sciencedaily.com

The iconic, winged dinosaur Archaeopteryx was dressed for flight, an international team of researchers has concluded. The group identified the color of the raven-sized creature's fossilized wing feather, determining it was black. The color and the structures that supplied the pigment suggest that Archaeopteryx's feathers were rigid and durable, which would have helped it to fly.