FILE 001Weirdvibrations through the head and bodySnakes lack outer ear openings and eardrums, yet they still hear via vibrations through the head and body to the inner ear.SrcNatural History Museum (London)Pass the claimOpen file
FILE 002WeirdShare60% of an adult human bodyAbout 60% of an adult human body is water — the fraction is higher in infants and lower with more body fat.SrcUSGS Water Science School
FILE 003WeirdShare23 times better than airAt about 20°C, liquid water conducts heat roughly 23 times better than air.SrcEngineering Toolbox
FILE 004WeirdSharecan sneeze with your eyes openYou can sneeze with your eyes open — closing them is a reflex, not a hard rule.SrcScienceDaily / Texas A&M
FILE 005Weird🌍Share1,000 times too faintHumans emit ultraweak visible light from metabolic chemistry — about 1,000 times too faint for the naked eye to see — imaged with cryogenic CCD cameras.SrcPLoS ONE (Kobayashi et al., 2009)
FILE 006Weird🌊Share4%In a controlled pool experiment, humans swam nearly as fast in guar-thickened syrup as in water — times differed by no more than about 4%.SrcAIChE Journal (Gettelfinger & Cussler, 2004)
FILE 007Weird🧊Sharea sugar-cube-sized lumpIf you removed the empty space from the atoms in every human on Earth, the remaining nuclear matter would fit in roughly a sugar-cube-sized lump — and still weigh what all humans weigh.SrcPhil Plait / Bad Astronomy (Syfy Wire)