WATCH: The history and legacy of birthright citizenship in the U.S.

A historic uptick in migration during Joe Biden's presidency led to attacks as he ran for reelection, with Donald Trump and fellow Republicans blaming Democrats for the swelling number of people ...

Here we’ll reveal some of the most miraculous facts about bird migration that are sure to astound even the most seasoned birders. One of the most immediately striking things about bird migration ...

Animal migration has fascinated humans for millennia. And for good reason: Some of the most astonishing feats of endurance are performed by long-distance migrants, such as the nine-day non-stop ...

President José Mulino said Panama's sovereignty over the world's second busiest waterway is not up for discussion.

The maxim that “demography is destiny,” commonly attributed to French philosopher Auguste Comte, remains as relevant now as ...

The millions of golden jellyfish that pack Palau’s Jellyfish Lake spend much of their lives on the move during a daily migration that follows the sun’s arc across the sky. Before sunrise ...

There are reports from the early 1700s onwards describing strange changes in caged birds’ activities around the time of wild bird migration. Captive birds have been observed to put on weight ...

Such herds rival the Serengeti’s teeming masses of wildebeests for the title of the world’s most massive—and awe-inspiring—mammal migration. Dry season finds the Sudd’s white-eared kob ...

Here are five key facts about migration across the U.S.-Mexico border over the last several years. These figures include arrivals at land ports of entry, where asylum seekers wait for appointments ...