All Aboard The Pole-ar Express!

Riddle: One day, down at the South Pole, five penguins and twice as many polar bears got onto a train. The train was headed to another station that was 15 minutes away from where it was initially. What is wrong with this story?

Answer: Polar bears live at the North Pole, while penguins live at the South Pole. They can't coexist at the same Pole.

Source: https://www.riddles.com/index.php/11490

One day, down at the South Pole, five penguins and twice as many polar bears got onto a train. The train was headed to another station that was 15 minutes away from where it was initially. What is wrong with this story? — All Aboard the Pole-ar Express! by Gabriella Simonetti Riddle