It is not known to evolve into or from any other Pokémon.
Comparison between Lapras's younger and older appearances
Lapras is a large sea creature that resembles a plesiosaur. It has a spotted, blue hide with a cream underside. Its neck is long, and it has large black eyes. There is a short horn in the middle of its forehead and curled ears placed farther back on its head. Instead of legs, it has four flippers with the foremost pair being larger than the hind. On its back is a heavy, gray shell covered in blunt knobs.
Lapras is a gentle, helpful Pokémon that enjoys ferrying people across bodies of water. This docility has made it an easy target for hunters, who have nearly driven it to extinction; however, it has become abundant in number due to recent efforts to protect its population. An intelligent Pokémon, it is able to understand human speech. It has been known to travel the seas in large pods. To keep in touch with other of its kind, it sings enchanting melodies. In the anime it was shown that Lapras is able to develop psychic abilities such as telepathy. Lapras is native to the seas.
The most notable role of Lapras in Pokémon Adventures was being one of the Pokémon of Pryce. In his youth, Pryce lost two of his favorite Lapras, La Pris and La Prus, in an avalanche just as the Egg borne by them hatched. Unable to get over his loss, Pryce swore to save his Lapras and thus began researching into time travel, setting the events of the Johto saga in motion. Eventually, Pryce was able to capture Celebi and enter time, only to lose Celebi as the Poké Ball containing it was shattered, causing him to be unable to override time any further. However, the baby Lapras, La Glace, was able to enter the time in which Pryce's Lapras were separated, and the family enjoyed a happy reunion while Pryce was eventually lost in time. The child Lapras first appeared in Irked Igglybuff and Curmudgeonly Cleffa and the parents appeared in The Last Battle XIV.
In The Electric Tale of Pikachu, Ash saves a Lapras from a swarm of Krabby tormenting it. Like in the anime, Ash used this Lapras as a mode of transportation through the Orange Islands saga. It is not known in this version if he releases it. Misty also uses one as a mode of transportation.
In the Pokémon Zensho manga
Satoshi has a Lapras which originally belonged to Sabrina and was given to him after trying to defeat Giovanni.
In the Magical Pokémon Journey manga
A Lapras was used by Hazel which was owned by Marryn.
Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness and Explorers of Sky: Lapras is the Pokémon that ferries Pokémon to the Hidden Land. When Wigglytuff explored the Brine Cave and found the strange marking on the wall there, Lapras asked Wigglytuff not to investigate it further to keep the Hidden Land a secret. During the player's exploration of Brine Cave, the partner's Relic Fragment resonates with a painting in the deepest part of the cave, and this summons Lapras. Lapras ferries the player, the partner, and Grovyle to the Hidden Land, along the way telling the story of what happened when Wigglytuff and Chatot came to Brine Cave. Later, after the player defeats Dialga at Temporal Tower, Lapras will be waiting at the beach and can ferry the player and the partner back to the Hidden Land again. There is no limit to how many times Lapras can do this.
In Pokémon X and Y, Lapras has a unique 3D model when surfing, whereas all other surfing Pokémon are depicted as dark blobs. This may be an homage to the Generation II surfing sprites ( ), which greatly resemble Lapras, or Lapras's role as a means of transport.
A Shiny Lapras uses the same 3D model as a regular one while surfing.
In photos taken at Azure Bay, the player is seen riding a Lapras even if no Lapras is in the party.
Laplace may be a reference to Pierre-Simon Laplace, a mathematician who wrote several books on the mathematical properties of the sea and tides. Alternatively, Laplace may be derived from la place (French for seat), referring to how passengers sit on its back like a seat to be ferried across bodies of water. It may also be derived from lapis lazuli, a bright blue gem.