The clock may be ticking not only on environmental clues in Syria, but biological ones as well.
This time, though, its researchers are less interested in the digital computers on volunteers' desks than in the biological ones between their ears.
That allowed the case to be argued on technical issues, separating legal definitions from biological ones.
Regardless of the financial implications, Tom Nalepa, a biologist working with invasive species on the Great Lakes, is worried about the biological ones if the rule is inadequate.
Furthermore, the TDT approach is based on the assumption that both participating parents are the biological ones, which might be wrong for a significant part of the fathers.
They reasoned that our distant ancestors would have left more descendants by focussing their care on their own children, with the result that people today would on the whole feel less love for stepchildren than for biological ones.
All psychological states are also biological ones.
Syria and Libya have chemical or biological ones.
"This will create many problems — beginning with minor and resolvable ones to permanent biological ones.
It's about struggle, the efforts of an ensemble wrestling with artistic obstacles as well as biological ones.
Terrorism experts warned about the threat of cyberattacks in the aftermath of Sept. 11, as they did about biological ones.
