When living things cross into new territory, they are often viewed as threats. But Sonia Shah, who has written a new book — <em>The Next Great Migration --</em> says the "invaders" are just following biology.

When living things cross into new territory, they are often viewed as threats. But Sonia Shah, who has written a new book — The Next Great Migration -- says the "invaders" are just following biology.

New Book Argues Migration Isn't A Crisis — It's The Solution

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New Book Argues Migration Isn't A Crisis — It's The Solution

New Book Argues Migration Isn't A Crisis — It's The Solution