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British scientist Simon Conway Morris believes there are only two possibilities for alien life; either we're alone or aliens exist, and they are out to get us. When considering the prospect of alien life, humankind should prepare for the worst, according to a new study: Either we're alone, or any aliens out there are acquisitive and resource-hungry, just like us.
These two unpalatable options are pretty much the only possibilities, according to the new study. That's because evolution is predictable, and alien biospheres should thus produce
intelligent creatures much like us, with technological prowess and an ever-increasing need for resources.
But the fact that we haven't run across E.T. yet argues strongly for the latter possibility - that we are alone in the universe's howling void, the study suggests.
"At present, as many have observed, it is very quiet out there," study author Simon Conway Morris, of the University of Cambridge, told SPACE.com in an e-mail interview. "And given many planetary systems are billions of years older than ours, I'd expect us to be best grilled on toast back in the Cambrian."
Evolution is predictableLife on Earth has exploited just about every conceivable niche, tolerating extremes of temperature, salinity, pH and pressure. Conway Morris makes the case that Earth life thus exists close to the physical and chemical limits of life anywhere. [
The Weirdest Life on Earth]
Further, Conway Morris says, evolution operates predictably, producing relatively predictable outcomes. These two suppositions argue that alien life, if it exists, should be fairly similar to terrestrial life, generating intelligent beings much like us. These aliens may look unfamiliar, but any differences would be skin-deep.
There is reason to be wary of such creatures, according to Conway Morris.
Comment: For more information on Earth's hidden history of interaction with Comets and Asteroids, we encourage readers to check out Laura Knight-Jadczyk's Comets & Catastrophe series listed on the left column of SOTT.net
To see the staggering number of 'die-offs' around the world depicted on the world map (with links to the news stories) click here