Creepy doll lurking in this deep-sea trash heap just wants to say hi to you. That's all. She promises.

A Japan research agency has built an extensive database of underwater garbage.
 By 
Maria Gallucci
 on 
Original image replaced with Mashable logo

The deep sea is littered with all the junk we carelessly toss away, from plastic bags to old washing machines to incredibly creepy figurines. Not even the greatest depths of the ocean are spared from our impressively depressing garbage footprint.

A Japanese research agency has started cataloguing all the plastic, metal, rubber, and cloth it comes across during deep-sea missions. The result is an extensive database of nearly 1,800 videos and photos of underwater trash.

The Japan Agency for Marine-Earth Science and Technology opened the database this week, revealing a trove of hidden "treasures" captured by its research submarines since 1982, The Japan Times reported.

The database, available in English and Japanese, is relatively easy to navigate. Users can search by debris type, location, and water depth.

"I want people to know that trash at sea not only floats ashore but affects the sea at depths of 10,000 meters [33,000 feet]," Hideaki Saito, acting head of the agency's information disclosure group, told Japan Times.

Here's a sampling of some of the trash lurking deep below us.

Ghost heads

As if the doll photo above didn't clue you in, some items in the database are incredibly disturbing. Like this mannequin head, found in 1991 at around 20,500 feet deep in the Japan Trench.

Clean-up in Mariana Trench

The Mariana Trench -- the deepest part of the entire ocean -- reaches depths of at least 36,000 feet in the western Pacific. Film director James Cameron piloted the Deepsea Challenger to the trench's bottom in 2012. Perhaps he should've brought a trash picker.

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

She's back!

Japanese researchers spotted this terrifying discarded doll in 2008 near the Sagami Bay. No, she's not plotting her revenge on humankind, why would you think that?

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

Rubber tires

Cast-off car tires abound on the seafloor. In the first video, sea creatures have made the most of their rubber visitor. Bivalve mollusks known as Delectopecten randolphi cling to the tire in the Minami-Shiribeshi Knoll, at about 9,800 feet deep.

The second video shows a rubber tire on the gravelly sand of the Nankai Trough, at about 900 feet below the surface.

Just add lobster

Seafood jokes are still cool, right? Japan's marine agency spotted this metal cooking pot some 10,600 feet deep off the island of Sanriku.

Where's the dryer?

This washing machine turned up in 1997 the Sagami Bay, at around 4,320 feet below the surface.

Original image replaced with Mashable logo
Original image has been replaced. Credit: Mashable

Hopefully these images will remind you to properly dispose of your mannequin heads, and maybe just avoid dolls entirely. And please. Recycle. We're begging you.

All video credits: JAMSTEC E-Library of Deep-Sea Images

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Maria Gallucci

Maria Gallucci was a Science Reporter at Mashable. She was previously the energy and environment reporter at International Business Times; features editor of Makeshift magazine; clean economy reporter for InsideClimate News; and a correspondent in Mexico City until 2011. Maria holds degrees in journalism and Spanish from Ohio University's Honors Tutorial College.

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