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TIL that a typical session of human sexytime consists of about 100–500 thrusts

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pYAGb TIL that dogs see in shades of blue and yellow. The colors we see depend on two types of photoreceptors: rods and cones. Humans have three types of cones, but dogs only have two. Dogs have fewer cones, but have more rods, which help them identify moving objects and see better in low-light conditions
5o4n TIL of Alien hand syndrome, a neurological disorder that causes hand movement without the person being aware of what is happening. The afflicted person may reach for objects and manipulate them without wanting to do so, even to the point of having to use the healthy hand to restrain the alien hand.
WkwOo TIL 3–15% of alcoholics commit suicide, and over 50% of all suicides are associated with alcohol or drug dependence, due to alcohol causing physiological distortion of brain chemistry, as well as social isolation.
wop5P TIL many coroners aren't doctors and they can be appointed or elected to their positions
GAeZ4 TIL Ray Parker Jr, writer, composer and performer of the Ghostbusters theme song, is afraid of ghosts - contrary to his claim that he “ain’t afraid of no ghosts”.