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How this frog can tell if you're pregnant

Video Duration2:2515.1k views
Before home tests were available, pregnancy tests involved frogs. Yes frogs!
Made by The Derek Jarman Lab, 8 February 2019
Remember when? Curiosities from the recent past
7 VIDEOSTotal Duration21:27225.5k views
Modern life is changing at an incredible rate - but sometimes it's worth remembering how different things were in the not too distant past.