The Cal Academy veterinary team worked with vets and care teams across the U.S. to develop the first ever successful surgical repair to this issue.

A slipped ankle tendon sounds like something attributed to a hulking NFL star on a team injury report. But for a small penguin, such an injury used to mean amputation or even death. No more, said the California Academy of Sciences in San Francisco.

But the majority of the episode actually takes place ten years prior to The Penguin's present-day events, instead focusing on a younger Sofia as she's framed for murder by her father, crime lord Carmine Falcone (played by John Turturro in The Batman and now played by Mark Strong in flashbacks).

It feels counterintuitive, but it’s quite a joy knowing that you don't have to hunt through The Batman spin-off looking for Easter eggs. Here's a great example: The Penguin episode 4 took viewers to Arkham Asylum and didn’t show us the Joker.