Two Gentoo penguins — Nipper and Pebbles — have welcomed the hatching of their second chick at the Tennessee Aquarium. The penguin chick is a lot like its par

Two Gentoo penguins — Nipper and Pebbles — have welcomed the hatching of their second chick at the Tennessee Aquarium. The penguin chick is a lot like its parents and is "noticeably more easygoing than past penguin babies," the aquarium said. [▻](https://video.twimg.com…