Tuesday, August 15, 2017

ഷഡ്പദം അഥവാ പ്രാണികളിലെ റെക്കോര്‍ഡുകള്‍

https://youtu.be/O2JxxusJWRY

Saturday, May 20, 2017

How do pearls form?

Various forms of Pearls

Pearls are formed inside the shell of live pearl oyster (e.g. Pinctada). They come

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