A dog swims more than 4km every day to nurse her newborn puppies who are stranded on an island.

She gave birth to four pups at Shanhuba, which has become an island in the Changjiang River due to the heavy rains this summer.

Huahua swims 1.2 km to the island every day to nurse her four babies. Then she returns to the Changjiang River, following the flow of the water, to swim another 1.1 km to another part of the city to feed herself.

Each day Huahua does the whole journey twice, once in the morning, around 7 am, and again at 7 pm, at which point she stays with her pups on the island and returns to the city the next morning.