It is thought to have been made in the Derby porcelain factory around 1770-1800.
He says the results could change predicted extinction dates for Emperor penguins.
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cumulative weight += weights[i]
YouTube's chief executive Neal Mohan said: "By reconstructing the original 2005 watchpage, we aren't just showing a video; we are inviting the public to step back in time to the beginning of a global, cultural phenomenon."