These hyper realistic drawings are so lifelike they could pass for photographs. The incredibly detailed works of art were created by self-taught artist Ivan Hoo, from Singapore, who earns a living from his realistic drawings and paintings. The 31-year-old takes up to three days to complete the impressive pieces, which include animal portraits and still life drawings of everyday items such as a Starbucks cup. The A3 sketches are completed using a range of soft pastel pencils and are drawn from still life, or a photograph taken by Ivan himself. Here: Ivan Hoos drawing of a pug. (Photo by Ivan Hoo/Caters News)

“The aye-aye (Daubentonia madagascariensis) is a lemur, a strepsirrhine primate native to Madagascar that combines rodent-like teeth and a special thin middle finger to fill the same ecological niche as a woodpecker. It is the world's largest nocturnal primate, and is characterized by its unusual method of finding food; it taps on trees to find grubs, then gnaws holes in the wood and inserts its narrow middle finger to pull the grubs out. The only other animal species known to find food in this way is the striped possum. From an ecological point of view the aye-aye fills the niche of a woodpecker as it is capable of penetrating wood to extract the invertebrates within”. – Wikipedia

Photo: In this handout image from Bristol Zoo is seen the first captive bred aye-aye in the UK named “Kintana” (meaning star in Malagasy) April 15, 2005 at Bristol Zoo Gardens, England. The zoo announced today only the second baby aye-aye to be hand-reared in the world (the first was in Jersey Zoo) and has now made his first public appearance since his birth on 11 February 2005. (Photo by Rob Cousins/Bristol Zoo via Getty Images)

“The Southern Tamandua, Collared Anteater or Lesser Anteater (Tamandua tetradactyla) is a species of anteater from South America. It is a solitary animal, found in many habitats from mature to highly disturbed secondary forests and arid savannas. It feeds on ants, termites and bees. It has very strong foreclaws that can be used to break insect nests or to defend itself”. – Wikipedia

Photo: A three-month-old baby Southern Tamandua “Konbu” lies on its mother Tae's back at Sunshine International Aquarium on July 7, 2009 in Tokyo, Japan. Baby Southern Tamandua feels safe and comfortable holding onto something and normally stays on the mother's back until around 3 months old. (Photo by Junko Kimura/Getty Images)

Using his camera skills, Marc meters the background sky in order to achieve the beautiful black silhouettes of the wildlife, Africa, 2010-2016. (Photo by Marc Mol/Barcroft Images)

This picture taken on February 18, 2017 shows a customer holding a crested black macaque in Tomohon market in northern Sulawesi, Indonesia. Authorities and activists are stepping up efforts to persuade villagers on Sulawesi island to stop consuming the critically endangered crested black macaques, one of many exotic creatures that form part of the local indigenous community' s diet. The macaque' s meat is prized by the ethnic Minahasan people, a largely Christian group in the world' s most populous Muslim- majority country, who have no reservation about eating exotic animals, unlike Indonesia' s Islamic communities. (Photo by Bay Ismoyo/AFP Photo)

Individuals and populations student winner. Limbing in the Tropics, photographed in Manaus, Brazil. While walking in the Amazon rainforest looking for bat roosts to set up mist nets to capture bats for scientific research, a faint and almost imperceptible noise suddenly caught this photographer’s attention. An anteater was climbing with exceptional ability in a tangled mess of branches and lianas. (Photo by Adrià López Baucells/University of Lisbon/British Ecological Society)

An elephant eats a snack after performing at Ringling Bros and Barnum & Bailey Circus' “Circus Extreme” show at the Mohegan Sun Arena at Casey Plaza in Wilkes-Barre, Pennsylvania, U.S., April 29, 2016. Elephants take a final bow at Ringling Bros and Barnum & Bailey Circus on Sunday, ending a 145-year spectacle that delighted fans but enraged animal activists, who say the highly publicized retirement is not enough. (Photo by Andrew Kelly/Reuters)

HIV-positive 71-year-old Sylverio Hachiploa (R) talks with caregivers Glandwel Muleya (L) and Sister Abigail Mwaka Mazuba (C) in his thatched hut during a visit by a home-based care team in the village of Nedwmba, south of the Chikuni Mission in the south of Zambia February 23, 2015. The caregivers in the Jesuit-run home-based care project at the Chikuni Mission run a capacity-building and empowerment project at the household level, offering training and assistance in crop-growing and animal rearing, as well as offering companionship, pastoral care and monitoring of the antiretroviral treatment compliance of HIV-AIDS patients. (Photo by Darrin Zammit Lupi/Reuters)