Here in Washington, D.C., spring doesn’t really start until the cherry blossoms show up. Streets, parks, and the National Mall all transform into a sea of pink and white, with people from all over the world coming to see the…
Here in Washington, D.C., spring doesn’t really start until the cherry blossoms show up. Streets, parks, and the National Mall all transform into a sea of pink and white, with people from all over the world coming to see the…
Most microbes are harmless or even beneficial, but a small subset—pathogens—can wreak havoc on human health. One of the most common ways people encounter pathogens is through contaminated water. While many water sources undergo treatment that eliminates over 99.9% of…
It started with a mystery and then a high-tech search. In the 1990s, Dr. Jonathan Zehr, an ocean ecologist at the University of California, found an eye-catching DNA sequence in the water samples he was studying. Analysis of the sequence…
Spring is a beautiful season of change. From our perspective we get to enjoy warmer weather, flowers blooming and wildlife returning. But there’s also tons of change going on beyond the surface! Inside plants and animals, tiny molecular switches control…