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How A Border Wall Would Affect Wildlife Migration10:00

Jeff Corwin at WBUR.  (Robin Lubbock/WBUR)MoreCloseclosemore
Jeff Corwin at WBUR. (Robin Lubbock/WBUR)

Bidding closed this week for the Trump administration's plan to build a wall along the southern border with Mexico, with 200 companies applying for the project.

The promise to build a border wall originated during then-candidate Donald Trump's run for president. But Jeff Corwin says a wall wouldn't just hold back potential migrants, it would inhibit animal populations that pass through that region, and could have disastrous effects on a sensitive ecosystem.


Jeff Corwin, wildlife biologist and host of ABC's "Ocean Treks." He tweets @jeffcorwinlive.

This segment aired on April 7, 2017.

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