Micrococcus luteus is a Gram-positive, to Gram-variable, nonmotile, Coccus, saprotrophic bacterium that belongs to the family Micrococcaceae. It is urease and catalase positive.
Why is a mammoth more likely to fossilize than a caterpillar? A mammoth is more likely to fossilize than a caterpillar because a caterpillar has no hard tissue. Bones and cartilage are much more likely to fossilize. Edit
As such, the presence of a femur with clear bicondylar angle in a fossil hominid indicates that this individual walked bipedally, and was also the product of a prolonged history of selection for human-like bipedality because this plastic response was able to occur.