Five baby otters have been thrown in at the deep end at Chester Zoo for their debut swimming lessons.
Their parents Annie and Wallace introduced the quintet to the water after the youngsters emerged from their dens for the first time since their birth on July 8.
The litter of Asian short-clawed otters, made up of two boys and three girls, is the first for Annie, aged two, and Wallace, four.
Keepers at the zoo have yet to name any of the newborns whose species is the smallest of all otters.
Fiona Howe, assistant otter team manager, said: "While otters might seem like born naturals in the water, even they need to be taught the basics in the early stages of their lives.
"Asian short-clawed otters are a highly social species and learning to swim is a real family effort. Mum Annie and dad Wallace have both been working together and, now that they are confident that each of the pups are ready to start swimming, they've been taking them by the scruffs of their necks and dropping them in at the deep end.
"All five of them are getting to grips with the water really, really quickly.
"Annie and Wallace are first time parents but they're doing a fab job, sharing with the daily care of the pups, including grooming, babysitting and feeding."
Pictures: Chester Zoo / PA Wire
Asian short-clawed otters, which are found in various parts of Asia from India to the Philippines and China, are listed by the International Union for the Conservation of Nature (IUCN) as vulnerable to extinction.
Experts believe the species is likely to soon become endangered unless the circumstances increasing the threat to its survival improve, said the zoo.
Sarah Roffe, otter team manager, said: "Many of the wetlands where Asian short-clawed otters live are being taken over by humans for agricultural and urban development, while some otters are hunted for their skins and organs which are used in traditional Chinese medicines.
"It has led to a decline in their numbers - a rapid decline in some regions - and they are now listed as one of the world's most vulnerable species. That's why it's so important to support conservation projects to safeguard the future of this important species."
As well as a successful record with breeding exotic otter species, Chester Zoo has also helped fund research and conservation projects in Cheshire to monitor and safeguard native otter populations.