Screen Rant

ABC's Lost introduced several big mysteries in its first season. 1 / 8

One mystery, the polar bear, was introduced in season 2 but wasn't explained until much later. 2 / 8

Numerous polar bears were spotted in the show's earliest seasons. 3 / 8

In season 3, it was revealed that the polar bears were brought to Hydra Island by the Dharma Initiative for experimentation. 4 / 8

Later, the bears were used to turn the large wheel at the Orchid station. 5 / 8

After The Purge, the bears escaped their cages and swam to the main island. 6 / 8

Though the polar bear was one of the show's first mysteries, it was quickly overshadowed by even stranger occurrences on the island. 7 / 8

For this reason, the explanation for the polar bear was one that some fans may have missed. 8 / 8