askscience

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Most animals have relatively short childhoods and adolescences, lasting together at a few years at most. At what point in human evolution did we begin to have relatively longer childhoods and adolescences? What drivers were in place that necessitated this change in our life cycle?	11
In non-human, social, intelligent species where primitive levels of division of labor exist, has there ever been evidence of nutrition withheld by group members from another who has not been "doing their part"?	3
To what degree does basal human activity (Breathing, flatulence, etc.) contribute to greenhouse gasses?	1
Why do we do "the potty dance" when we need to urinate but don't have the immediate chance to do so? Does it have a genuine physiological function, or is it entirely cultural?	1
What Happens If You Remove an Insect like an Ant or a Bee from Their Hive?	1
Sci-fi is often filled with alien worlds where-in one biome is either dominant or the only one present on the planet. How realistic is this? Do our current projections about exoplanets include the possibility of a "desert world" like Arrakis of Dune fame, or of "jungle planets" and the such?	1
It's widely accepted that, since the Industrial Revolution, human activity has greatly reduced the planet's biomass. Between the First Agricultural Revolution and the Industrial, though, did human farming/food production activities ever cause an increase in planetary biomass that we can recognize?	1
How did the act of baring one's teeth - which is an obvious sign of aggression and threat in other animals - manage to become an expression of joviality and friendliness for humans in the form of the smile?	1
To what degree does basal human activity (Breathing, flatulence, etc.) contribute to greenhouse gasses?	1

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