In the 1970s, Sloan studied zoology at Oregon State University, became a freelance graphic designer and scientific illustrator, and attended art and design classes in New York City at several prominent schools including, Pratt Institute, Parsons School of Design, and National Academy of Design. From 1981- 1989, Sloan was Art Director at the Financial Executives Institute and designed Financial Executive magazine. From 1989-1992, he held the same position at Changing Times magazine, which he later redesigned as Kiplinger’s Personal Finance Magazine. In 1992, Sloan joined National Geographic Magazine as one of three art directors. In 1994, Sloan became the chief Art Director and served as the Senior Editor for archaeology and paleontology. In 2007 he left the Art Department to start a new department where he was Director of Mission Projects, a liaison role between the magazine and the National Geographic Society’s research grantees. While at National Geographic, Sloan wrote two feature articles, including a cover story, “The Origin of Childhood.” In 1999, Sloan published a feature article called “Feathers for T. Rex?” for National Geographic Magazine, describing an Archaeoraptor fossil found in China as "a missing link between terrestrial dinosaurs and birds that could actually fly." It was discovered later that the fossil had been illegally exported from China and had been a forged composite fossil and not a new species. After leaving National Geographic, Sloan co-authored, with Dr. Rick Potts, the exhibition companion book for the opening of the Smithsonian National Museum of Natural History’sKoch Hall of Human Origins, "What Does It Mean to Be Human?" In 2010, Sloan founded with anthropologist Dr. Christina Elson. The firm focuses on creating and promoting content related to science, environment, history, art and design through exhibitions, television, digital media, and books.
Fieldwork
Sloan has been to numerous field sites and has participated in excavations in Alberta, China, and Scotland. In 2004, while on a dig in western China, Sloan helped discover a new genus of prehistoric crocodile, which now bears the name Junggarsuchus sloani. In 2007, he led an editorial team on a 2,500-mile road-trip through Iran, which resulted in a National Geographic cover story on ancient Iran.
Selected awards and recognitions
In 2003, Sloan was selected to be a distinguished member of the EXPOSÉ Advisory Committee by the . He is a four-time winner of the and Children’s Book Council “Outstanding Science Trade Book” award.
Selected publications (books)
Baby Mammoth Mummy: Frozen in Time: A Prehistoric Animal's Journey into the 21st Century,
What does it mean to be Human?, written with Dr. Rick Potts,
Mummies: Dried, Tanned, Sealed, Drained, Frozen, Embalmed, Stuffed, Wrapped, and Smoked...and We're Dead Serious,
Bizarre Dinosaurs: Some Very Strange Creatures and Why We Think They Got That Way, written with Drs. James Clark and Cathy Forster,
How Dinosaurs Took Flight: The Fossils, the Science, What We Think We Know, and Mysteries Yet Unsolved, written with Dr. Xu Xing,
The Human Story: Our Evolution from Prehistoric Ancestors to Today, written with Drs. Meave and Louise Leakey,
Bury The Dead: Tombs, Corpses, Mummies, Skeletons & Ritual, written with Dr. Bruno Frolich,
SuperCroc and the Origin of Crocodiles, written with Dr. Paul Sereno,
Feathered Dinosaurs, written with Dr. Phillip Currie,