I guess the pointy ears are out too:
But what would ETs look like once we finally meet them?
To find out, Kaku interviewed experts in exobiology, a field that studies what life might be like in distant worlds with different ecosystems. Based on his research, Kaku decided that intelligent alien life would have three necessary features:The aliens, like humans, would have stereo vision, which allows eyes to compare images and track distance — a necessary feature in predators, who hunt and track their prey. “In all likelihood, intelligent aliens in space will have descended from predators that hunted for their food,” Kaku writes. “This does not necessarily mean that they will be aggressive, but it does mean that their ancestors long ago might have been predators. We may be well served to be cautious.”The aliens would have some form of opposable thumbs or grasping appendages, necessary for hunting prey and creating tools (which they would have to do to be sophisticated enough to make contact).They would also need to have language. “In order to hand down and accumulate essential information from generation to generation, some form of language is crucial,” Kaku writes.
In addition, Kaku theorizes that many alien civilizations will exist on ice-covered moons (like Jupiter’s moon Europa or Saturn’s moon Enceladus), where life would exist completely underwater. So how would an aquatic species become truly intelligent beings?
Kaku takes this thought experiment back to Earth. The one Earth-bound underwater animal that nearly fits all the above criteria — stereo vision, graspable appendages — is the octopus, he writes. The cephalopod, which has survived on Earth for at least 165 million years, only lacks language.
I have a question. If Earthlings developed the way we did because of evolution, that means certain species adapted to conditions in order to survive while those that failed to adapt did not survive. And survival would be based on what’s needed given the Earth’s atmosphere, available food, natural resources – all kinds of things specific to this planet.
Why would scientists assume similar traits like opposable thumbs or grasping appendages, or even stereo vision? For that matter, why would they assume that hunting prey is a factor in surviving on a planet that could be very different from ours?
I’m not assuming there are aliens at all. I’m simply trying to apply the logic of people who claim one phenomenon happened here based on Earth’s conditions, and understand why they would come to the same conclusions about living creatures on planets they know nothing about.
Unless . . . all creatures have these traits because we all have one creator, which you might recall is an issue we’ve dealt with here.
We’re talking about potential aliens on hypothetical planets we don’t know anything about, if they exist at all. Which means we really can’t know anything about what these planets’ inhabitants might look like, or what they need to live.
But the less we know about all this, the more I guess we really wish we did know.
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Powers and Principalities (2009): Twenty years ago, Clay Bender saw the face of spiritual evil with the naked eye while attending a party. Now, Clay’s terrifying spiritual gift returns, showing him that a supernatural threat is looming – one that could threaten everyone in Royal Oak. As the community grapples with bizarre electrical disturbances and a horrible train derailment, only Clay can recognize the true nature of the strange events, and he and his two closest friends have little time to battle the city’s demons – even as all three are forced to face their own. (Buy Now button for signed hard copy: $15.99. Amazon button for digital download: $2.99)
Pharmakeia (2010): Kyla Spears is being warned – in terrifying dreams – of grisly and violent tragedies looming for young people in Royal Oak. But her spiritually gifted friend Clay Bender is reluctant to help, and her feelings for one charming young man threaten her newfound spiritual integrity and her ability to face the truth about what’s really behind the threat. (Buy Now button for signed hard copy: $15.99. Amazon button for digital download: $2.99)