/u/whynotfart's posts in /r/askscience

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Are humans the only species that males have to use hand to hold the penis for aiming at the vagina when mating?

1 upvotes

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Do birds feel tired when they fly?

1 upvotes

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A flock of birds are flying together in random directions. What are they thinking?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are humans the only species that males have to use hand to hold the penis for aiming at the vagina when mating?	1
Do birds feel tired when they fly?	1
A flock of birds are flying together in random directions. What are they thinking?	1