Consensus is rare in science, yet the irreparable harm of a 2,000-mile barrier on wildlife is so assured that more than 2,700 scientists from 43 countries joined together to ask U.S. political leaders to reconsider the Trump administration’s ‘big, beautiful wall.’ Defenders helped unify scientists’ voices in this powerful message by outlining concerns in a scientific article, coauthored with esteemed biodiversity and borderlands scientists, that was published this week in the journal BioScience. Read more about it here .