In the initial images of the ccam, dark and hidden from view as raw images, we had fiber types shapes, found to be of no serious interest to the rover controllers and science group overseeing operations.
In the images of the mcam or mastcam I believe it was on sol 33? we also have a very fine soil colored and toned fiber or 'stick' shape. Again I saw no interest from Earth ground control in further developing a case of identification.
I know these items are seen in images of all three rovers routinely over seven years exploration of Mars.
Could there be any more strange a process of travelling tens of millions of miles, only to miss the opportunities for science about these related objects so foreign to rock and soil type shapes?
What amazes me is the tonnage of items sent to orbit without a compendium of testing of items alive or in stasis such as spores and chemistry precursors which may have been transported routinely to Earth from many sources.
Perhaps the researchers are very familiar with materials which make fiber shapes that are mineral. I have seen only a few minerals, at visible size range, and all are rather unusual and fairly rare on Earth.
Something is missing from this story we are writing.
I appreciate the interest in these 'freezable' animals and fungi/bacteria combination lifeforms from Earth that can be submitted to Mars conditions for periods of time.
It may be fortunate for Earth that most life regroups in the 'soft' normal environment, as a heavy growing population in the polar tundra might change climate and ice cover eventually.
The miniature colony of epiphyte/saprophytes are still alive in my rock garden despite terrible drought, cold, ice burial, and summer constant blazing sun. It has passed through a 'flowering' phase, and is now becoming tendril shaped, whereas it used to be a barrel cactus types shaped closed leaf casing. That colony is found in the high mountains of the Atacama desert and frozen mountaintops of part of the Andes, where nothing much is ever seen growing.
Unfortunately that perennial has passed to a last stage of life cycling. I observed it living next to lichens on a volcanic rock, next to lichens, looking much like a cluster of limpets.
Could the fiber objects in the Curiosity rover images be missed by the overseers?
Nearly everywhere they have looked carefully on Earth, there has been some life found.