This giant marsupial was a seasonal migrant
![Diprotodon optatum](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/09/092617_LH_marsupial_main.jpg?fit=860%2C460&ssl=1)
MEGA MIGRATOR Diprotodon optatum is the largest-known marsupial. A new analysis suggests the giant plant eater might have migrated long distances, much like today’s zebras or wildebeests.
Stocktrek Images Inc./Alamy