
On 14 February at Toba Aquarium, the giant isopod that captured the imaginations of a nation was found dead in its tank by keepers and media. This brings to an end the record-setting hunger strike No.1 had been waging since 2009.
Giant isopod No.1 was turned over to Toba Aquarium in Mie Prefecture on 9 September, 2007. For over a year the large pill-bug looking creature lived peacefully in the confines of the Aquarium. Although there is still a lot to learn about these creatures, they have built up a reputation for their voracious appetites.
No.1 too had seemed to be adjusted to its new environment. However, for some unknown reason on 2 January, 2009 its final meal was a 50g morsel of horse mackerel. Since then it refused to eat.
The man in charge of No.1 was dumbfounded by the stubbornness of this crustacean. At regular intervals he would try to offer some food to the creature to no avail. Over time the animal seemed to learn how to visually appease its human keepers by moving its mouth and front legs around the food pretending to eat. In the end, it never actually took a bite.
No.1’s keeper Takeya Moritaki began to invite members of the press to witness feedings in the hopes that one day this fast would end. But time and time again in front of an increasingly disillusioned group of photographers, No.1 would simply play with its food.
On Fundoshi Day, 2014 Mr. Moritaki readied his mackerel for his second attempted feeding of the year. In front of the press that still came out hoping “this time would be different,” he lowered the bait into the tank. Sadly, this time No.1 didn’t even feign interest in the food. It simply sat motionless.
Noticing something wrong, No.1 was lifted from the water and declared dead on the spot. On that day it had officially gone five years and 43 days without eating. This is quite possibly the longest period of time any animal had been observed to go without food and not in any form of suspended animation.
Research is underway on the remains of No.1 in the hopes of discovering why it never ate and anything else about the lives of these elusive creatures. Meanwhile, the makers of the giant isopod iPhone case are expecting a major spike in profits following this celebrity’s death.
Today is a sad day for crustaceans the world over.
Source: Yahoo! Japan News (Japanese)
Video: YouTube – TobasuiChannel, EnosuiMovie

Giant Underwater Pill-Bug Refuses to Eat for 4 Years, Scientists Puzzled Why It’s Being Such a Jerk
Giant undersea bug in Toba Aquarium poops for first time in two years
Japanese company creates iPhone case using a dead marine isopod
Oh… yummy! New snack to hit Japan: giant isopod senbei rice crackers!
We learn about the deep-sea armored isopod, then eat one 【Video】
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Should you dip your cake in sake? One Japanese brewer says no, but actually yes【 Taste test】
What did Shibuya really look like after the crowds on New Year’s Day?
McDonald’s unveils latest Black Burger – the Spicy Korean Burger 【Video】
Melon topped with ice cream: two great Hokkaido tastes in one crazily delicious package
Japan’s new difficult-to-drink-from beer glass protects your liver, but it’s a brutal experience
7-Eleven’s edible cat paw proves Japanese convenience store sweets are on a whole other level
Pikachu-ear engagement rings and Pokémon wedding rings for him and her can now be yours【Photos】
The etiquette rules for visiting Shinto shrines in Japan
Japan Super Budget Dining – What’s the best way to spend 1,000 yen at beef bowl chain Sukiya?
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
7 great places to see Mt. Fuji from without having to climb it
We found possibly the quietest Japanese-style hotel in Tokyo’s bustling Shinjuku district
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
Hello Kitty Choco Egg figures are an adorable trip through three periods of Japanese pop culture【Pics】
Japan’s oldest largetooth sawfish in captivity back on display in Mie Prefecture
Cyberpunk anime meets traditional culture in Ghost in the Shell gold leaf Japanese changing screens
The best Starbucks Japan Frappuccinos we want to drink again in 2026
We revisited Sweets Paradise after a decade to see if Japan’s dessert buffet still delivers
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Stamina-destroying “Paralysis Noodles” are Tokyo’s newest over-the-top ramen innovation
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Leave a Reply