Latest Mark Rebeiz Stories
The team traced the development of a unique feature in a species of fruit fly that began with low-level gene activity and became a distinct feature in a mere four mutations as an existing gene took on a new function, according to a report in PNAS Small genetic mutations that add up over time could create an evolutionary express lane that leads to the rapid development of new traits, researchers from the University of Pittsburgh and the University of Wisconsin at Madison have found. The team...
- The navel or umbilicus.
- In Greek archaeology: A central boss, as on a shield, a bowl, etc.
- A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.