Turtles, birds, trees and flowers all part of the scene on a recent day, writes Dana Wilde.

Biologists estimate that 1 in 100,000 elms has a natural resistance to Dutch elm disease, leaving a few behind where there once were many, writes Dana Wilde.

Columnist Dana Wilde’s brother is an exterminator who finds himself in some weird situations with bugs and humans.

You’d think swerving out to avoid a turtle would put a better shine on your day than swerving onto the roadside to crush one, writes Dana Wilde.

It takes 4.5 minutes for light to travel from Earth to Mars in their current positions, slightly skewing clock measurements — not to mention the psyches of people trying to make sense out of them, writes Dana Wilde.

You can look southward and see Mars any clear night from now into early summer, 55 million miles or so leeward of the sun, writes Dana Wilde.

When you drive to the recycling center and let your car idle, there is a bit of a disconnect, writes Dana Wilde.

Snowless February woods are sort of like a scene in a vaguely disturbing dream, writes Dana Wilde.

Scientists aren’t sure why the same species of spider has three different markings, writes Dana Wilde.