A same-sex penguin couple has been entrusted with an adopted newborn chick at a London aquarium.

In a first for the venue, the pair was blessed with a newborn after patiently incubating the egg.

The female gentoo couple, Marama and Rocky, have been together for five years and adopted the egg after demonstrating to Sea Life's team that they would make good parents.

The egg was moved from its birth mother to relieve her of the pressure of raising two chicks. The gender of the chick is not yet known, and the aquarium has not yet named it.

General manager Graham McGrath said: "Marama and Rocky have taken to becoming parents like ducks to water - or should I say penguins.

"Caring for a newborn is tough for anyone, from the sleepless nights to the constant feeding, yet this wonderful pair of penguin parents are completely unflappable and seem to be taking it all in their stride."