Archaeopteryx slow growth is the flightless kiwi, and the authors speculated that "Archaeopteryx" and the kiwi had similar basal metabolic rate. Comparisons between the scleral rings of "Archaeopteryx" and modern birds and reptiles indicate that it may have been diurnal, similar to most modern birds. The richness and diversity of the Solnhofen limestones in which all specimens of "Archaeopteryx" have been found have shed light on an ancient Jurassic Bavaria strikingly different from the present day. The latitude was similar to Florida, though the climate was likely to have been drier, as evidenced by fossils of plants with adaptations for arid
Archaeopteryx be black throughout, with heavier pigmentation in the distal tip. The feather studied was most probably a dorsal covert, which would have partly covered the primary feathers on the wings. The study does not mean that "Archaeopteryx" was entirely black, but suggests that it had some black colouration which included the coverts. Carney pointed out that this is consistent with what we know of modern flight characteristics, in that black melanosomes have structural properties that strengthen feathers for flight. In a 2013 study published in the "Journal of Analytical Atomic Spectrometry", new analyses of "Archaeopteryx"'s feathers revealed that the animal