Annual population census indicates the threatened species is slowly swimming toward recovery.

UC undergrads find native vegetation rebounding on Santa Cruz Island decades after eradicating imported grazers.

Drug-resistant diseases, pesticide-resistant bugs and animals threatened by climate change are signs of human-driven evolution getting out of control. A multi-university team calls for solutions.

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

Largest solar power purchase by a university moves UC closer to its goal of achieving carbon neutrality by 2025.

Considered the world's rarest fish, the wild pupfish faces a 28 to 32 percent risk of extinction over the next 20 years. A UC Berkeley biologist is helping to rescue it from that fate.

Ancient Egyptian artworks help scientists reconstruct how animal communities changed as climate became drier and human populations grew.

Drought, climate change and other natural and human factors are driving changes at Lake Tahoe.

Research team did long-term measurements of lake chemistry, studied sediment cores from the lakes.

Study is the first to quantify how quickly these “committed” emissions are growing — by about 4 percent per year — as more fossil fuel-burning power plants are built.

Weather-related changes threaten key natural regulator of the region's water flow.

Exposure to the once-common pesticide before birth slowed the metabolism of female mice and lowered their tolerance of cold temperature. This increased their likelihood of developing metabolic syndrome and its host of related conditions.