/u/xaplexus's posts in /r/askscience
Physical traits are often explained by their power to propagate a species. Leopard spots hide the predator, etc. But by this argument one may ask, where are the spotted lions?
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How strong is the correlation between the fitness of an adult individual and the motility of its paternal sperm?
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When animals "play dead" is the time interval of immobility approximately the same for the various species that exhibit this behavior?
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Is it possible to create a synthetic aperture optical telescope capable of resolving surface details on planets of nearby stars? How large would the synthetic aperture have to be?
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Does the midbrain tend to process inputs into relatively binary outputs (attraction/avoidance, agree/disagree) compared to more nuanced cerebral processing, based on imaging studies?
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Have there been any studies that attempt to correlate the hormonal responses of subjects to politically charged stimuli with the politics of the subjects?
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If heat radiated by an incandescent light bulb is considered useful (it's cold outside), how inefficient is it overall, compared to an LED bulb of the same lumens?
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What is the oldest man-made structure, dated by historic references (not radiometrics), known to include stone with embedded, petrified, macroscopic fossils (not just impressions)?
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