WELLINGTON, New Zealand (AP) — He needed a little push before speeding backward down a makeshift slide. Once in the water, he popped his head up for one last look. And then he was gone. The wayward emperor penguin known as "Happy Feet" was back home in Antarctic waters after an extended sojourn spent capturing hearts in New Zealand.

Wellington Zoo veterinarian Lisa Argilla said Happy Feet's release went remarkably smoothly given that the boat was being tossed about in 25-foot (8-meter) swells in the unforgiving Antarctic ocean.
"He swam away, not caring about us anymore," Argilla said.
She paused.
"And that's a good thing," she said.