Did you know? Lifespan of rat (2 y) is 2 x Period of Earth's orbit (1 y)
Estimated population of Eastern Grey Kangaroo (2011) (16.06 million individuals)
/fact/estimated-population-of-eastern-grey-kangaroo-2011
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.