[ WP ] Aliens visit earth and are fascinated by other animals but find humans completely unremarkable .

`` Look at this one!'' Mercha squatted down to examine the creature. `` Take note at its external appendage at the end of its spinal cord. The length is about the length of the creature. The appendage seems to be made of tufted keratin.'' 
 
 Gercha quickly scrawled a note and knelt down next to his partner. `` Yes. Do you see the rather large incisors that extend past the end of the lower set of lips? It seems like an excellent method to break through any sort of material. The teeth seem strong - perhaps made of the same calcium substance we found in the bones of our last subject.'' 
 
 `` Indeed,'' Mercha said. `` Do you see the long pointed nails? And the shape of its legs. It seems perfect for fast running. It also seems like it has the ability to climb vertical objects by using its nails. This is quite an interesting creature indeed. I would like to put a tracker tag on it and follow its daily routine.'' 
 
 `` Ah yes, let us allow it to exist as it would and then write a report on the magnificent animal's lifestyle,'' Gercha nodded. `` What shall we call it?'' 
 
 `` Perhaps we shall call it a tree mouse, after subject 00325, colloquially known as a'mouse' on this planet.'' 
 
 `` Ah yes. So we will monitor the tree mouse. What is next on our list?'' asked Gercha. Mercha examined her surroundings. 
 
 `` What about that being there? It seems to be wearing some sort of fabric to cover its skin. Perhaps as a way to protect itself from the elements as it lacks a keratin covering.'' 
 
 `` It seems to be doing something quite strange,'' remarked Gercha. `` Why... it is standing on two legs, and has no appendage from the base of its spine. Or it is hidden beneath the covering.'' 
 
 `` Why does it just stand?'' Mercha asked. `` The other specimens we have examined seem to have a purpose. What does this one do?'' 
 
 `` It's best not to dwell on it,'' Gercha said. `` That species must be the most pitiable on earth. It seems unable to live for itself without the help of its coverings or its metal contraptions. Why, it even seems to need to block out the natural sun. We should spend our time on the better creatures of the planet.'' 
 
 `` Yes, we should,'' Mercha agreed. She spotted something in the distance and pointed to it. `` Look at that! It seems to be a creature with a stripe down its back. It, too, has a spinal appendage that is covered in keratin. I wonder what its purpose is. Let's go find out.'' 
 
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