Explore Klein Karoo of South Africa: Ostrich, Meerkat, and Cango Cave
By Su Zhou | chinadaily.com.cn | Updated: 2016-06-14 17:20
With help from professionals, you could also ride ostrich and even stand on ostrich eggs. Don't worry, the egg is composed of 96% crystalline calcite and 4% organic material, mostly proteins. The hardness of the shell is 3 on the Mohs scale.
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