Did you know? Pop. of Jaipur, India (3.073 million people) is 2 x Estimated world population of Blue Wildebeest (1.55 million individuals)
Mass of an adult male Hippopotamus (1,500 kg)
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Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.