An archaeology crew excavated what its members think is a prehistoric skeleton from the banks of Lake Travis on Sunday. Evidence at the site indicates that the skeleton is between 700 and 2,000 years old, most likely dating back about 1,000 years, members of the excavation crew said. The nearly intact skeleton is being donated to the University of Texas for further study. The skeleton was found Aug. 9 by an Austin man riding a personal watercraft on Lake Travis. David Houston had pulled onto the sloped southern bank, admiring a nearby house, when he saw a jawbone, teeth and...