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Fun Fact: one of the earliest pregnancy tests was a fish, called a European Bitterling. If injected with a pregnant person’s urine, its ovipositor (egg-laying organ) will protrude, indicating a positive result
🥷💬
Fun Fact: one of the earliest pregnancy tests was a fish, called a European Bitterling. If injected with a pregnant person’s urine, its ovipositor (egg-laying organ) will protrude, indicating a positive result