Philadelphia Inquirer: In case you missed it and forgot to send a card -- as did I -- Wednesday was the International Day for Biodiversity.
What's biodiversity?
Ask most people, and they think it's related to the number of species in a particular area. The more species, the more biodiversity.
So, naturally, they think of places like the Amazon as being biodiversity strongholds.
But a report from the Boreal Songbird Initiative and Ducks Unlimited begs to differ. They think other characteristics -- concentrations...