Dinnie the giant lobster at Deep Sea World
A giant lobster with fist-sized claws has gone on display at Deep Sea World in North Queensferry.
The colossal crustacean measures close to 30in (0.75m) in length and tips the scales at almost 8lb (3.63kg).
Staff have nicknamed him 'Dinnie' in honour of Donald Dinnie, the famous 19th century strongman.
He is thought to be more than 50 years old and was donated to the aquarium by a local shellfish firm after he was found in one of their creels.
Deep Sea World's Tina Aydon said: "He's a real character and you do have to be wary of his giant claws as they are extremely strong.
"I'm originally from New Zealand and have dived all over the world and he's certainly one of the finest specimens I've ever come across. He's in tip-top condition and quite feisty."
Visitors will initially be able to view Dinnie in one of the aquarium's naturally-themed rockpool displays.
However the long-term plan is that he will be released into the 4.5 million litre Underwater Safari display.
Ms Aydon added: "Dinnie's an amazing creature and it's quite an achievement to have reached such an impressive age.
"There are loads of lobster-sized nooks and crevices in the display and he'll be able to live out the remainder of his days in extremely comfortable surroundings safe from the pot."
All lobsters are born with a cutting and a crushing claw. There is a 50-50 chance of developing a right or left crusher depending upon which claw is used more frequently.
The lobsters' prey consists of crabs, which are grabbed by the legs using the cutter claw while the crusher claw breaks open the shell.
Other prey include mussels, clams, sea urchins, starfish and marine worms.
In good visibility lobsters can also catch fast moving prey such as shrimps and small fish.