Physically, we just have no information to work from LOL! but here’s our thoughts:

Vision
Some form of visual perception is ideal for survival and manipulation of tools. But there are a wide variety of stars out there and the spectrum in which an alien species may see could be different from ours. There is a point at which that spectrum becomes destructive to living tissue as we understand it, and there is a point at which the amount of energy coming from a local star does not support life, so they will likely be in a range of vision which at least partially overlaps our own.
Hearing
Perception of sound does facilitate communication, and we do have more species on Earth that are effectively blind, with excellent hearing than we do that are effectively deaf outside of invertebrates, though many of them sense vibration through their bodies. Unless you support the idea of life evolving in the vacuum of space (which I consider not impossible, but highly unlikely) then life needs an atmosphere, and atmosphere carries sound. A successful species will develop every perception of its environment that facilitates survival. I suspect aliens will have a sense of hearing.
Appendages
As the article above states, manipulation of your environment is best facilitated through use of appendages when you are a low but evolving species. They need not be fingers, on hands, on arms, but something that permits tool use. It is likely they will not be “centipedes” as at a certain point, control of such a large number of appendages probably takes up a significant amount of the brain’s processing power and that does not lead to development in other areas. Insects have other problems as well, but that does not mean that insects on another planet could not develop differently than they have here.
Fire
If you are going to become a space faring race, you need the ability to manipulate your environment, to forgo the need to endure the randomness of nature so you can turn your attention to other things. For this reason I doubt a space faring race developing from an aquatic species. At least not one that must remain in its ocean.
Curiosity
Fundamental to advancement of intelligence is curiosity. The drive to examine, explore and discover the next thing, the awareness that you do not yet have all the answers, or even all the questions and the ability to see beyond the moment. Unlike what the article claims, Curiosity is not served by an aggressive nature, nor is an aggressive nature served well by curiosity. This is one of the reasons I dislike the idea in “Star Trek” of races like Klingons. An inherently violent culture does not develop high technology if their main focus is on killing each other or everyone they meet, which brings us to the next trait.
Cooperation
I doubt anyone today can build a bicycle all by themselves, let alone a spacecraft. Sure, you might be able to assemble one from component parts you purchase, but you will not go from raw materials to fully functioning modern bicycle without a little help. A vehicle capable of interstellar travel does not happen unless you understand the concept of working together to share skills and information on a shared goal.
Respect for Life
This idea may have been better placed after the Klingon comments, but what can you do?
Popular media view philosophical mono-cultures like Klingons, or Reptilians in current UFO lore, as possible. Without a respect for life, such aggressive and warlike philosophies are far more likely to destroy themselves over time than survive to a point where they can carry their aggression to other planets because at some point they must learn cooperation, and must develop a curiosity and at that point they can only question a philosophy of life that seeks only death. That or they just keep killing each other and if they keep killing each other their population remains low enough that there is no drive to expand.
Sure, these are just our opinions, though some of them are repetition of other analyses we have seen.But the ListVerse list is merely the opinion of another, in part based on the opinions of others.

If You missed the previous part of the this article here you go: http://bit.ly/1Wmj4Tl