Antiques
Art
Books
Cameras, Photos
Cars, Boats, Motorcycles
Coins & Money
Collectibles
Entertainment Memorabilia
Everything Else
Fashion & Apparel
Jewelry & Watches
Music
Musical Instruments
Oddities
Pottery, Glass
Sporting Goods
Toys & Hobbies
Unknown Items
Categories
View all
Sports
Gaming
Science
Funny
DIY
Aww
Gifs
todayilearned
human chorionic gonadotropin
Browse Categories
todayilearned
Apr 23, 2020
TIL the first reliable pregnancy tests involved doctors injecting women's urine into frogs; if they laid eggs without mating, the woman was pregnant. This test was called the "Hogben Test" and was used widely for about 20 years until doctors began injecting mice and rabbits instead.
a-z test
accidental finding
advanced pregnancy
artist eben kirksey
colleague cari romm
colleague charles bellerby
early career
female xenopus
folk pregnancy tests
frog
frog eggs
frog world
frogs
german scientists bernhard
gland—a pea-sized hormone
greenish-gray animal
hogben
hogben test
hogben’s colleagues
human chorionic gonadotropin
human urine
immature female mice
irascible zoologist
lancelot hogben
local amphibians
long time
loretta—a frog
medical historian jesse
modern pregnancy tests
native african home
obsolete pregnancy test
pregnancy diagnosis station
pregnancy test
pregnancy testing
pregnant woman
pregnant women
reliable test
scientist edward elkan
similar work
south africa
strident left-wing politics
sub-saharan africa
unbroken streak
unwanted pregnancy
urine specimen
would-be mother peed
xenopus
xenopus colonies
xenopus museum
xenopus test
Show the world who you are
We give you the most custom-tailored news feed on the web!
Get only the stories, pictures, gifs, & videos you care about.
At Show 1, you're in control! No spying, no tracking, no algorithmic manipulation, no BS!
×