These remarkable creatures rely on trust and cooperation to thrive, making their partnerships truly inspiring. Let’s take a look at 10 animals that stay with their mates for life. Mysterious 'ghost ...

Macaw species are giants among birds, with wingspans reaching up to 4 feet (1.2 meters) and measuring up to 40 inches (101.6 cm) beak to tail. These spectacularly colorful members of the parrot family ...

A 13-year study of tiny penguins in Australia has dispelled the long-held myth that these seabirds mate for life, with the 'divorce rate' nearly 10 times that of the current statistics for US adults.

This story appears in the July 2016 issue of National Geographic magazine. Bald eagles, aka Haliaeetus leucocephalus, seem to be models of decorum. The raptors mate for life, unless one partner ...