the.com/louse

a six-legged hitchhiker that turned your scalp into prime beachfront real estate.

means A small wingless parasitic insect that lives on the skin or hair of mammals and birds, feeding on blood or skin and notorious for infesting human heads and bodies.

from From Old English 'lūs,' with cousins across the Germanic family — Old Norse 'lús,' Dutch 'luis,' German 'Laus.' The odd plural 'lice' comes from an old sound-change pattern (the same one that turned 'mūs' into 'mice' and 'gōs' into 'geese'), where a now-vanished vowel reached back and reshaped the root. The contemptuous sense — calling a person 'a louse' — is much later, the insect's parasitic reputation simply transferred to humans of similar character.

strict diet
feeds only on blood, several times a day
glue gun
cements eggs to hair, nearly impossible to wash off
host loyal
different species infest head, body, and pubic hair
evolution clock
clothing lice DNA dates human dress to 170,000 years
no jumper
cannot hop or fly, only crawls
for instance

pediculus humanus capitis — head louse species affecting ~6-12 million children annually in the us

pediculus humanus corporis — body louse that spreads epidemic typhus, historically killed millions in wwi trenches

phthirus pubis — pubic louse (crab louse), sexually transmitted parasite affecting humans

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