We take a look at thecacera pacifica, known as the “Pikachu sea slug” in Japan, which many say is the real-life inspiration for the Pokémon character.
A couple of weeks ago, Japanese teacher-celebrity Osamu Hayashi introduced viewers to an adorable little sea slug known as thecacera pacifica on his popular Japanese television program Hayashi-sensei ga Odoroku Hatsumimi Gaku, or Professor Hayashi’s School of Surprising Second-Hand Knowledge. What makes this marine creature extra special is its incredible likeness to Pikachu, the star character of the popular Pokémon franchise, and while the species has made news in the past, its recent television spotlight introduced even more people to its unusual appearance, drawing attention to the sweet bright-coloured slug all over again.
ピカチュウウミウシ可愛い(*^^*) pic.twitter.com/ozqEKxbSa2
— こみつ、マタママ(*^^*) (@RJamGwp1Z5ohVpi) August 7, 2016
While die-hard fans of the franchise may have seen this slug before, it’s now captivating even more legions of admirers, particularly those who have recently come to love the series through the hugely popular mobile game Pokémon Go.
https://twitter.com/sazatinn0209/status/758496071538446338The slug’s likeness to the electric Pokémon needs no explanation, with its bright-coloured body and long, pointy black-tipped ears earning it the nickname “Pikachu Sea Slug” in Japan.
ピカチュウウミウシwww pic.twitter.com/rnE0nRyruR
— 爆速 (@BK1TA) July 8, 2016
While the cute critter can be found along coastal regions in Japan like the Izu Peninsula, Bonin Islands, and Yakushima, it also appears on land too, in the form of cute figurines and pendants.
博物フェスにいってきました!
— yukika (@yukika0319) July 24, 2016
ピカチュウウミウシをゲットだぜ! pic.twitter.com/avZQLj86zr
ウミウシ展の準備が終わりました!
— makoron (@makoron3012) August 18, 2016
後は当日を待つだけです!
ウミウシ達も緊張の面持ちです。
当日はマステも持って行きますよー! pic.twitter.com/6W128vRCdN
It’s not common to find sea slugs like these in aquariums, but if you’re in Japan, you can view approximately 25 species at Osaka Aquarium, where they have 120 animals on display.
水中でもポケモンGOできたら楽しいな。ピカチュウウミウシ pic.twitter.com/w05RiiSnwk
— さかな (@chaetodon07) July 17, 2016
With its unusual colouring and otherworldy appearance, the gorgeous thecacera pacifica is not the only creature to invoke an anime doppelgänger in the well-known Pokémon series. To see more Pokémon in the real-world, check out this cute collection!
Source: Spotlight
Top Image: Twitter/@sazatinn0209

Pokémon GO players in Japan discover strange new hybrid species of monsters in the game
Pokémon Go players discover unusual gym locations around Japan
Pokémon Go Trainers in Japan take over parks in huge crowds on first weekend of game’s release
Is Pokémon Go helping prevent deaths at one of Japan’s most notorious suicide spots?
Pikachu cosplayer delights Pokémon Go gamers in Japan
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
7-Eleven Japan to start selling Vietnamese banh mi sandwiches this summer
Forget Tokyo go-karts – there’s a new way to sightsee on four wheels in Japan
Studio Ghibli adds new My Neighbour Totoro music box to its anime merchandise store in Japan
Starbucks Japan releases new Frappuccino, tea and soda drinks for summer
Gama Land, the weird Japanese amusement park celebrating toads, is now like a ghost town
Starbucks Japan releases new limited-edition summer drinks…and a pastry for dunking
All-you-can-eat cheese restaurant in Tokyo is a hidden gem not many people know about
Lawson Japan releases a crazy new product to remind us it’s not just famous for convenience store food
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Universal Studios Japan is giving Frieren anime fans the chance to make unforgettable memories.
Tokyo’s life-size Gundam is getting a new look before its end-of-summer removal
Japanese bento shop touches hearts by selling super cheap boxed lunches for around a dollar
7-Eleven Japan joins the craze for Korean Gamja Cheese Balls
Lawson upsizes convenience store food for a limited time with two must-try Japanese meals
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Wisteria season starts early with blooming of Japan’s Great Wisteria in its beautiful garden
6 things people in Japan should watch out for when Pokémon Go lands in the country
Pokémon Go released in Japan? We spot a rare “Glasses Pikachu” at Tokyo’s Nintendo headquarters
Pokémon Go in Japan: We discover a “Pikachu forest” in Tokyo!
Detective Pikachu debuts in Pokémon GO in event saluting franchise’s first live-action film
China creates its own version of Pokémon Go called “City Spirits Go”
Mewtwo makes long-awaited Pokémon GO debut in Yokohama fan event
Pokéball Aimer 3-D printed iPhone case makes news among Pokémon Go Trainers in Japan
Before Pokémon Go, there was Ingress, and its first “XM-Profiler Illumination Portal” is in Japan
Pokémon Gold and Silver Pocket Monsters finally added to Pokémon GO!
Pokémon memes go viral as Japan pokes fun at Exeggutor’s new long-necked Alola form
Could the Pokémon GO model be the future of idol singer management video games?
Kyoto temple becomes Pokémon Go gym in Japan, provides special phone chargers for players
Pokémon GO player claims his in-game snapshot shows Japan’s new emperor and Pikachu together
Creators of Pokémon Go apologise for game’s late arrival in video address to players in Japan