We are devastated by the loss of our loved ones. This tragedy has left all of our families heartbroken beyond words. Greg and Cristina were devoted parents and active philanthropists whose lives were centered around their young son Ryder and Greg’s daughter Emma (mother – Nicole Lunders).

The Art Instinct: Beauty, Pleasure, and Human Evolution, by Denis Dutton (Bloomsbury, 288 pp., $25) Dutton builds a bold cross-cultural argument: we all have a prehistoric “art instinct” programmed into our genes through natural and sexual selection.

On Tuesday, Denis Dutton passed away in New Zealand after a battle with prostate cancer. He was 66. Dutton was an author, a philosophy professor, and the founder of Arts & Letters Daily, a general-interest Web aggregator that launched in 1998. The site's ...