Scientists have found a new way to tease out signals about Earth’s climatic past from soil deposits on gravel and pebbles, adding an unprecedented level of detail to the existing paleoclimate record and revealing a time in North America’s past when summers were wetter than normal.

Data on current carbon emissions will help cities meet goals set a Paris climate summit, and show people how they contribute to global warming.

The traditional diet of Greenland natives – the Inuit – is held up as an example of how high levels of omega-3 fatty acids can counterbalance the bad health effects of a high-fat diet, but a new study hints that what’s true for the Inuit may not be true for everyone else.

Amrita Hazra, a postdoctoral researcher in the Department of Plant and Microbial Biology, is on a mission — to introduce people to the benefits of eating millet, which primarily is used in the United States in bird feed.

Arachnophobes fearful of spiders jumping, creeping or falling into their beds now have something new to worry about. Some spiders might also glide in through the window.

Unlike most octopuses, which tackle their prey with all eight arms, a rediscovered tropical octopus subtly taps its prey on the shoulder and startles it into its arms.

While the eyes may be a window into one’s soul, new research led by UC Berkeley scientists suggests that the pupils could also reveal whether one is hunter or hunted.

Drought and the growing water demands of agriculture and a changing climate are creating a “knife edge” of survival for young salmon and steelhead, says UC Berkeley fish ecologist Stephanie Carlson. She is working to determine minimum water levels needed to sustain the fish.

Jill Banfield, professor of EPS and ESPM, and grad student Christopher Brown discovered a large number of new groups or phyla of bacteria, suggesting that the branches on the tree of life need some rearranging. The more than 35 new phyla equal in number all the plant and animal phyla combined.

A new UC Berkeley-led study has found that birds are more important than previously recognized as hosts for Lyme disease-causing bacteria in California. 

An analysis of 727 studies reveals that there have been more instances of rapid, catastrophic animal die-offs over the past 75 years. These mass kills appear to have hit birds, fish and marine invertebrates harder than other species.

Amid the amazing biodiversity of the Indonesian island of Sulawesi lives a 5-gram frog that gives direct birth to tadpoles, without ever laying eggs. 

A UC Berkeley-led research team found that golden-winged warblers in Tennessee fled the path of tornado-generating storms one to two days ahead, well before any local signs of troubling weather. Signs point to the use of infrasound as Mother Nature’s early warning system.

Threespine sticklebacks undergo rapid evolutionary change when they move from the ocean into freshwater, losing their armor and gaining more teeth in as little as 10 years. UC Berkeley biologist Craig Miller now shows that this rapid change results not from mutations in functional genes, but changes in regulatory DNA. He pinpoints a gene that could be responsible for jaw deformities in humans.

A new study by biologists at Stanford University and UC Berkeley highlights the dramatic hit on the evolutionary diversity of wildlife when forests are transformed into agricultural lands.

Scientists estimate that fewer than 100 Devils Hole pupfish remain in their Mojave Desert home, but a conservation biologist at the University of California, Berkeley, is giving important guidance in the efforts to rescue them by establishing a captive breeding program.

A comparison of the genomes of polar bears and brown bears reveals that the polar bear is a much younger species than previously believed. Also uncovered were several genes that may be involved in the polar bears’ extreme adaptations to life in the high Arctic.

Mary Wildermuth is developing plant breeding strategies that can weaken the effects of powdery mildew. If not controlled, powdery mildew is a fast spreading fungus that can cause billions of dollars of crop damage in California.

Peru’s treasured Manu National Park is the world’s top biodiversity hotspot for reptiles and amphibians, according to a new survey published last week by biologist.

The Jepson Herbarium at UC Berkeley has a big mission: understanding and protecting California’s flora. Given that the state is home to thousands of native plants, nearly 1,500 of which can be found only here, that’s a lot of work for a lot of people with a lot of specialized knowledge. So the Jepson Herbarium has done what comes naturally in order to ensure it will always have the well-trained plant-lovers it needs.

Calcium can do much more than strengthen bones. The mineral is a critical nutrient for healthy tree growth, and new research shows that adding it to the soil helps reverse the decades-long decline of forests ailing from the effects of acid rain.

The death of individual species shouldn’t be the only concern for biologists worried about animal groups, such as frogs or the “big cats,” going extinct. A University of California, Berkeley, study has found that a lack of new, emerging species also contributes to extinction.

Long before Earth became lush, when life consisted of single-celled organisms afloat in a planet-wide sea, bacteria invaded the ancient ancestors of plants and animals and took up permanent residence.

Like bugs? Ever wonder what goes on behind the scenes at natural history museums? Interested in helping scientists understand our changing environment? These are just some of the reasons why people should join a project led by UC Berkeley’s Essig Museum of Entomology.

The vast region of Africa known as the Sahel will descend into large-scale drought, famine, war and terrorist control if immediate, coordinated steps are not taken to avert the perfect storm of climate change and the most rapidly growing population in the world.

Fields with diversified, organic crops get more buzz from wild bees, concludes a synthesis of 39 studies on 23 crops around the world published March 11 in the journal Ecology Letters.

A rotten-egg stench that fouled a swath of Southern California in September was traced to the Salton Sea — the latest episode in the environmental woes of California’s largest, but rapidly shrinking, inland lake. Now a new study has demonstrated a cost-effective method for using man-made wetlands to clean contaminants out of the freshwater rivers that flow into the sea.

Pescadero Estuary, located an hour south of San Francisco, is a coastal habitat under intense pressure from several interest groups, some human, others wild. And the estuary’s endangered fish species need specific seasonal water regimens and salinity levels to survive.

Extremely bright, active galaxies formed and fully illuminated the universe by the time it was 750 million years old, or about 13 billion years ago, according to Oliver Zahn, a postdoctoral fellow at the Berkeley Center for Cosmological Physics (BCCP) at the University of California, Berkeley, who led the data analysis.

In the August 24 issue of Science, the multi-institutional Palomar Transient Factory (PTF) team presents the first-ever direct observations of a Type 1a supernova progenitor system.