If I hadn’t been watching with my own eyes, I might not have believed it myself. But here she was, a monarch butterfly, intently probing a dead plant in the middle of a vibrant patch of flowers she all but ignored. Unaware of the scientific literature, she didn’t know that her kind wasn’t supposed...

Snakes instill a deep-rooted fear in many people that few other animals can match. Even other animals seem to put them in a special category; many wild animals recognize snakes as threatening, and some birds and monkeys even have special vocalizations for sounding an alarm when a snake is seen. But...

They slip soundlessly through our landscapes, cloaked in a rainbow of colors and patterns that help them become one with bark, rocks, leaves and soil. Often the only sign of their existence is what they leave behind: ghostly shed skins imprinted with shapes of eyes and scales, traces of pigmentation...

The house next door sits vacant, placed on the market after the last renter moved out. A succession of owners has knocked down walls, replaced carpeting and installed standard-issue appliances. Edging the exterior are shrubs from conventional landscaping palettes, including invasive species that...

Sometimes my most significant revelations are the annoying, kick-me-in-the-pants ones that follow a period of contented denial. One of those seismic shifts in thought came last year at a dinner party, when a man nearly half my age honed in on a flaw in logic I’d subconsciously buried. A plant...