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Babies Burst from Mom's Back
Surinam toad eggs embed into the mother's back skin, where they develop for 3-4 months before fully-formed toadlets burst out of her back.
Surinam Toad
Pipa pipa
This flat, bizarre-looking toad has one of the most unsettling reproductive methods in nature.
Vital Stats
🏷️ TypeAmphibian (tongueless toad)
🌍 Found InNorthern South America — muddy streams and swamps
📏 Size10-20cm
⏳ Lifespan8-15 years
🔞 Sexual Maturity2-3 years
💕 Mating SystemMale clasps female; they somersault while eggs are laid
📅 Mating SeasonRainy season
👶 Offspring60-100 eggs per breeding
🍆 Penis Size5.0 mm
⏱️ Sex Duration2 minutes
🔬 Notable AnatomyEggs embed into female's back skin; fully-formed toadlets erupt from her back
⚖️ Sexual DimorphismFemales larger with rougher skin during breeding