Is 21.70 cubic inches as big as an Ostrich Egg?
It's about one-fifth as big as an Ostrich Egg
The size of an Ostrich Egg is about 99.590 cubic inches.
(Struthio camelus) (for common ostrich; average)
The largest egg produced by living birds, ostrich eggs measure about 97.640 cubic inches in volume. The eggs take about nine weeks to hatch, with males and females taking turns incubating them.
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