Gus gained 3.5kg during his 20-day stopover before being released back into the Southern Ocean on Wednesday

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Gus, an emperor penguin who gained international fame after travelling about 3,000km from Antarctica to the West Australian coast, is on his long way home after being released into the Southern Ocean.

Emperor penguins can travel up to 1,600km on foraging trips, when they hunt fish, squid and krill. So Gus’s arrival on Ocean Beach, Denmark, on 1 November sparked surprise.

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