In PEOPLE's sneak peek at the three-part show, premiering April 20 on National Geographic, a mother rockhopper penguin faces a giant beast to ensure the safety of her offspring. The clip begins ...

Instead, sometimes it is the smaller or unexpected animals. That was the case when this cornered rockhopper penguin defended itself and its young against a massive sea lion. Watch as this brave ...

The first rockhopper penguin chicks of the year have been born at Edinburgh Zoo - and have been pictured being weighed. The number of chicks has not yet been announced by the zoo - but staff are ...

In a remarkable display of maternal courage, a rockhopper penguin was caught on camera defending her chicks against a massive sea lion near the Falkland Islands. Narrated by Blake Lively ...

The original 50p coins featured the wrong variety of Rockhopper penguin But one of them featured a variety of penguin that was actually native to an island 4,000km away, making them more valuable ...

Saved for the last in the series to appear is the smallest and most agile penguin in the Falkland Islands, the southern rockhopper. Easily recognizable with its straight thin yellow eyebrows with ...