The Pulse Archive

How caffeine went from natural to synthetic and why we should maybe expect more of it in the future.

Hurricanes. Tornadoes. Blizzards. Flooding. Over the past 20 years, we’ve seen a staggering increase in extreme weather events, res ...

There are 19 million veterans in the U.S. who have served in the armed forces. For many, the military gave them a sense of shared purpose ...

It’s that time of year when we celebrate something we usually hate: fear. We visit haunted houses and corn mazes or binge-watch the sca ...

The first generation of kids to receive intensive ABA has grown up — and many have criticized it as harmful and even abusive.

There’s a lot to love about grasslands — the sound of the wind blowing through them, the way the colors change with the seasons, how ...

Cheetahs were declared extinct 70 years ago in India. Ecologists hope its reintroduction will boost efforts to preserve the country's vast grasslands.

In the early days of the pandemic, life on the streets changed. Traffic was clear, and the roads felt nearly deserted. Bumper-to-bumper c ...

What causes potholes — and why are there so many of them?

When Applied Behavior Analysis (ABA) first emerged on the national stage, it was hailed as a ray of hope. It was an intensive, interactiv ...

A smile, clean socks, a sandwich, a wound care kit, a heartfelt “how are you feeling today?” All of these things can be part of a pub ...

Doing harm reduction work can feel like walking a tight line between helping and enabling.

During World War I, thousands of soldiers suffered catastrophic facial injuries. If these soldiers survived their injuries, they were oft ...

Tom Mustill was sure he was going to die — that was the last thing he thought as he watched a humpback whale arc majestically out of th ...

Around the world, at dawn, something magical happens. As the sun rises, nature seems to wake up, and different species break into a choru ...