- Number of base pairs in the human genome (3bn )...more would be 100 x Population of Yemen
- Estimated world population of Cattle (1.5 billion individuals)...more would be 50 x Population of Yemen
- Number of monthly active users of Instagram (2022) (1.478bn )...more would be 50 x Population of Yemen
- Number of cars in the world (1.2bn )...more would be 40 x Population of Yemen
- Estimated world population of domestic Cats (600 million individuals)...more would be 20 x Population of Yemen
- Number of items in the British Library (150million )...more would be 5 x Population of Yemen
- Pop. of Nepal (30.33million)...more would be about as big as Population of Yemen
- Pop. of Mozambique (30.1million)...more would be about as big as Population of Yemen
- Pop. of Ghana (29.34million)...more would be about as big as Population of Yemen
- Pop. of Karachi, Pakistan (15 million people)...more would be 1/2 of Population of Yemen
- Pop. of São Paulo, Brazil (11.9 million people)...more would be 2/5 of Population of Yemen
- Pop. of Burundi (11.87million)...more would be 2/5 of Population of Yemen
- Pop. of Somalia (11.76million)...more would be 2/5 of Population of Yemen
- Pop. of Tunisia (11.72million)...more would be 2/5 of Population of Yemen
- Pop. of Belgium (11.72million)...more would be 2/5 of Population of Yemen
- Pop. of Ningbo, China (7.61 million people)...more would be 1/4 of Population of Yemen
- Pop. of Laos (7.45million)...more would be 1/4 of Population of Yemen
- Pop. of Eritrea (6.08million)...more would be 1/5 of Population of Yemen
- Pop. of Central African Republic (5.99million)...more would be 1/5 of Population of Yemen
- Pop. of Kyrgyzstan (5.96million)...more would be 1/5 of Population of Yemen
- Pop. of Denmark (5.87million)...more would be 1/5 of Population of Yemen
- Pop. of Wenzhou, China (3.039 million people)...more would be 1/10 of Population of Yemen
- Pop. of Armenia (3.021million)...more would be 1/10 of Population of Yemen
- Number of Automatic Teller Machines (ATM's) in the world (3million )...more would be 1/10 of Population of Yemen
- Pop. of Kuwait (2.994million)...more would be 1/10 of Population of Yemen
- Pop. of Bahrain (1.505million)...more would be 1/20 of Population of Yemen
- Estimated world population of Moose / Elk (1.5 million individuals)...more would be 1/20 of Population of Yemen
- Pop. of Trinidad and Tobago (1.209million)...more would be 1/25 of Population of Yemen
- Pop. of Guyana (750,000)...more would be 1/40 of Population of Yemen
- Pop. of Suriname (610,000)...more would be 1/50 of Population of Yemen
- Number of active personnel in the South Korean Armed Forces (599,000 )...more would be 1/50 of Population of Yemen
- Estimated world population of Mullers Bornean Gibbon (300,000 individuals)...more would be 1/100 of Population of Yemen
- High estimate of number of common Chimpanzees (300,000 individuals)...more would be 1/100 of Population of Yemen
- Pop. of Vanuatu (298,300)...more would be 1/100 of Population of Yemen
- Pop. of French Polynesia (295,100)...more would be 1/100 of Population of Yemen
- Pop. of Barbados (294,600)...more would be 1/100 of Population of Yemen
- High estimate of world population of Hippopotamus (148,000 individuals)...more would be 1/200 of Population of Yemen
- Number of strands on a head of hair (120,000 )...more would be 1/250 of Population of Yemen
- Pop. of Aruba (119,400)...more would be 1/250 of Population of Yemen
- High estimate of world population of Leopards (75,000 individuals)...more would be 1/400 of Population of Yemen
- Pop. of Dominica (74,200)...more would be 1/400 of Population of Yemen

"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine

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Click here for Podcast: Andrew Elliott interviewed for New Books Network.