Did you know? Period of Halley's Comet's orbit (75.3 y) is 5 x Lifespan of a cat (15 y)
Forest in Sierra Leone (2018) (26,860 km^2)
/fact/forest-in-sierra-leone
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.