Quick! What’s the difference between a kangaroo and a wallaroo? The wallaroo is slightly smaller and a little stockier than its more famous cousin. The antipodal macropods are now frolicking with emus at the Oakland Zoo’s new Wild Australia exhibit.

You can see the new exhibit by taking a ride on the zoo train, which is now called the Outback Adventure Train. California’s climate is so similar to parts of Australia (consider the eucalyptus), would wallaroos and emus survive in the Oakland Hills if they escaped their enclosures?