April Fool's Day Archive, Contents:

Pedigree pretended to sell Doggie Dentures, a product previously featured jokingly in its ad for Dentastix dog treats, on a live shopping channel (Ideal World). Anyone who called the onscreen number or went to www.doggiedentures.co.uk was told, 'dogs don't want dentures, they want Pedigree Dentastix'.

The Bristol Zoo Gardens announced it was conducting an experiment to gauge the sensory sensitivity of gorillas. They hoped to find out "whether the scent of humans in a gorilla's environment can be picked up even after the humans have gone." The humans, of course, would need to be naked in order to leave the strongest scent behind. Christoph Schwitzer, Head of Research, explained: "Tending to the plants and flowers within the many animal enclosures at the Zoo is an important and necessary job for our team of gardeners. Now we are keen to get to the bare facts of whether their presence leaves a significant scent mark within the enclosure which can be picked up by animals. We are monitoring the gorillas' behaviour following gardeners carrying out work on Gorilla Island – once fully clothed, as a control group, and again without clothes, to see if there is a significant difference. The zoo released photographs of the naked phase of the experiment. The zoo later admitted that the experiment never took place, although "it is true that gorillas have a good sense of smell and are able to detect strong odours in their environment such as human sweat or the musk of an unknowngorilla." link: Bristol Zoo

Residents of Mousehole, Cornwall woke on the morning of 1 April 2010 to find their town had been overrun by mice. Knitted mice. The small, woolen rodents lined the harbor and perched atop handrails. Each mouse had a note attached, "If you like me, please feel free to keep me." A group calling itself the Graffiti Grannys soon emerged to take credit for the prank. They were a group of women, ranging in age from their mid-40s to 96, who loved to knit and loved to share their work. They explained that their motive for unleashing yarny creatures upon Mousehole was simply to make people smile.

The icelandic musician Björk announced on her website that she had accepted the position of lead vocalist for Led Zeppelin. However, she had insisted that she would only cover songs from the Lep Zeppelin album's I and IV.

Anticipating the annual flood of prank calls on April 1st, the Blank Park Zoo in Des Moines set up four hotlines that pranksters were invited to use. The hotlines were for "Mr. Albert Ross," "Mr. C. Lyon," "Ms. Anna Conda," and "Mr. Don Key." Each hotline played a prerecorded message to let callers know they'd been fooled.

The London Telegraph revealed a plan to generate electricity by harnessing the power of fish migrating upstream:

The article quoted Gavin Roach, "a world-leading specialist in green technologies based at the Université de Poisson d'Avril in Paris," as saying, "The Environment Agency team has made a very exciting breakthrough. Finetics clearly has the potential to create significant amounts of power by simply harnessing the power of nature."

Popular social news site Reddit changed its layout to resemble that of its rival, Digg. It also rebranded itself "Reddigg". It proclaimed: "At last, change has come to reddit. Let us rejoice."

The Guardian announced it would become "the first newspaper in the world to be published exclusively via Twitter, the sensationally popular social networking service that has transformed online communication," thus rendering its printing presses obsolete. It also revealed an ongoing project to rewrite its entire news archive in the form of "tweets" (Twitter's text messages that are limited to 140 characters each). Examples included:

Russian Standard Vodka ran ads in UK newspapers claiming to have created the world's first "lickvert": an ad dipped in vodka. Readers were urged to "Lick Here," though also reminded to, "Please lick responsibly."

The Sun revealed that during the World Cup qualifying match against Ukraine, fans would have to stand as the world's longest national anthem played, the six-and-a-half minute version of Oi Ukrainy. Any fans who sat down during the anthem would be ejected from Wembley stadium. The anthem would be sung by the folk star Furstov Aprylova.

Virgin Active, Sir Richard Branson's health club chain, announced it would be opening an animal-only gym later in the year, Animal Active. It would be "a haven for animals in need of exercise or lifestyle management."

Cling-film bandits struck Melbourne, wrapping at least 400 cars in the city in cling film. They wrapped cars parked at shopping malls, railway stations, and in residential areas. A note attached to the cars read: "Happy April Fools Day love Evie." The police did not investigate the prank because no damage had been done to the cars. [Herald Sun]

The Economist magazine announced it would be building a new theme park on a former industrial estate in East London:

Computer experts have warned that a computer virus, the Conficker virus, is expected to activate in millions of computers on April 1st. However, exactly what it will do when activated is not known. Despite the date of its expected activation, the virus itself is not a hoax!

The website HowStuffWorks described a new startup company, ReBubble, that was coming out with rechargeable chewing gum. The gum could be "recharged" by placing it in a special recharging station, the ReCHEWvenation Chamber, that plugged into either a standard power socket or connected to a computer via a USB cable. "After it finishes charging, the gum should have the same taste and texture as it did fresh from the package." The gum would eventually come in five flavors, although the only flavor currently available tasted like "grape with a hint of ozone." However, there were reportedly problems if people ate partially charged-sticks of gum. But the company was trying hard to prevent "catastrophic gum failure."