The threat of extinction is getting worse for migratory animals

The endangered Steppe Eagle is one of the migratory species that has become even more threatened in the past 30 years, according to a new UN report. | Photo by: Education Images/Universal Images Group via Getty Images

More than one in five migratory species officially deemed in need of international protection are now in danger of extinction. That’s according to the most comprehensive report of their populations yet, released as a United Nations wildlife conservation conference kicks off this week …

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