3 ms·

I always knew that egg came first.

• andy99 4mo ago
  requires real hen for fertilization and laying
  • paul_ny 4mo ago
    Huh… from the original Nat Geo article: scientists inspect eggs newly laid by real hens within 24 to 48 hours. They select the most promising ones, crack them open, and delicately pour the contents—everything but the shell—into the artificial egg structure. But everything that happened before then, from fertilization to egg laying, required a real chicken.