Across the world, migrating animal populations are dwindling. Here’s why

By Nathan Rott

In a landmark UN study, researchers found nearly half of the world’s threatened migratory species have declining populations. More than a fifth of the assessed animals face extinction.

(Image credit: Ullstein Bild/Ullstein Bild)

In a landmark UN study, researchers found nearly half of the world’s threatened migratory species have declining populations. More than a fifth of the assessed animals face extinction.

(Image credit: Ullstein Bild/Ullstein Bild)

Source: Across the world, migrating animal populations are dwindling. Here’s why