The intimate animal portraits, which feature everything from a forlorn-looking lion to a chimpanzee cradling its child, are meant to illuminate the similarities between animal poses, gestures, and gazes, and our own.
He looks at the way we assign human emotions and thoughts to animals, even though we don't know what they think or feel.
"What underlines my work in this project are the questions about how we shape nature and how it shapes us," Flach writes on his website.
Photographing animals on a set, as opposed to in their natural habitat comes with a unique set of challenges.
"You can never predict an animal's mood," Flach says. "So you have to plan beforehand to get what you want." To make the animals feel as comfortable as possible, Flach may adjust the temperature of the studio or play music.
You can purchase a hardcover copy of Flach's animal portraits More%20than%20Human