Sir David Attenborough says he is "greatly flattered" after The Deep name a young penguin after him.
Aquarists at the attraction have recently discovered the sex of the two penguin chicks which hatched back in June this year from DNA in a tail feather.
The first chick to have hatched from parents Nessie and Shackleton is a male and has been named after the well-known naturalist.
The second chick from parents Leo and Diane is female and has been named Lizzie in honour of her Majesty Queen Elizabeth II.
The Deep wrote to inform Sir David Attenborough of his namesake and received a hand written reply stating he is “greatly flattered that you should have given your new Gentoo my name” and congratulating The Deep on “all you are doing to further conservation causes”.
Lizzie and Attenborough are now fully grown and living happily with other adult birds.