"Some people say everyone has the biological potential for bisexuality, but that's untestable, " says Weinberg, who led one of the few major studies of bisexuals ( published last year as " Dual Attraction : Understanding Bisexuality " ).
12.
Regardless of their biological potential, an intelligent society with a million years of recorded history will almost certainly have accumulated far more knowledge than we have achieved in our few thousand years . talk ) 23 : 33, 2 August 2009 ( UTC)
13.
If the methane is truly present in the atmosphere of Mars, then something must be producing it on the planet now, because the gas is broken down by radiation on Mars within 300 years, therefore the importance to search for biological potential or habitability of the Martian arctic's soils.
14.
"The study of comets is extremely important, " says Carl Pilcher, NASA's science director for solar system exploration, " not only for understanding the origin of life on Earth but for understanding the biological potential of other planets, since the same comets that were hitting the Earth when the Earth was forming were probably also hitting Venus and Mars ."
