A rare angel shark pup was born prematurely at Deep Sea World in North Queensferry.
According to the centre it is the first time the critically-endangered fish had ever bred successfully in the UK.
Deep Sea World spokeswoman Aisling Thornton said: "As soon as the first pup was born it was very carefully transferred into its own display where it can be kept under observation.
"The first 24 hours are crucial and we are all just hoping for the best and keeping our fingers crossed.
"The female appears to be in good condition and we are expecting more pups to be born."
The angel shark is classed as Critically Endangered on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species.
Angel sharks grow very slowly and mature only at a large size and are highly vulnerable to being caught as a by-catch through bottom trawls, set nets and bottom long lines. As a result very few reach maturity.