Biological Sciences

Scientists hack microbes to identify environmental sources of methane

August 14, 2025

Roughly two-thirds of all emissions of atmospheric methane — a highly potent greenhouse gas that is warming planet Earth — come from microbes that live in oxygen-free environments like wetlands, rice fields, landfills and the guts of cows.

Tracking atmospheric methane to its specific sources and quantifying their importance remains a challenge, however. Scientists are pretty good at tracing the sources of the main greenhouse gas, carbon dioxide, to focus on mitigating these emissions. But to trace methane’s origins, scientists often have to measure the isotopic composition of...

Is the ‘love hormone,’ oxytocin, also the ‘friendship hormone’?

August 11, 2025

A new UC Berkeley study shows that the so-called love hormone, oxytocin, is also critical for the formation of friendships.

Oxytocin is released in the brain during sex, childbirth, breastfeeding and social interactions and contributes to feelings of attachment, closeness and trust. Never mind that it’s also associated with aggression; the hormone is commonly referred to as the “cuddle” or “happy” hormone, and people are encouraged to boost their oxytocin levels for better well-being by touching friends and loved ones, listening to music and exercising.

But recent studies...

Sweet Dreams Are Made of Genes: The Molecular Blueprint of Jellyfish Sleep

August 13, 2025

By reducing the expression of a single gene, UC Berkeley researchers were able to get jellyfish to fall asleep during the day, subverting their natural circadian rhythm. The finding could reveal how other animals’ biologies manage sleep.

In 2017, Michael Abrams and his coauthors showed that upside-down jellyfish (Cassiopea xamachana)...

Four of UC Berkeley’s early-career scientists named Pew Scholars

August 12, 2025

Today, the Pew Charitable Trusts announced that four UC Berkeley researchers will be recognized as 2025 Pew Scholars. The early-career biomedical scientists will receive multi-year research grants and join a rich network of more than 1,000 Pew-funded scientists.

Jennifer Doudna receives 2026 ACS Priestley Medal

August 6, 2025

Portrait of Jennifer DoudnaThe American Chemical Society (ACS) is proud to announce that Jennifer A. Doudna is the recipient of the 2026 Priestley Medal. This award is the highest honor bestowed by ACS, and it annually recognizes an individual for distinguished service to chemistry. Doudna receives the award for “outstanding...

What will that UC degree get you? 25 years of data show UC alums in high-growth careers across industry sectors

July 28, 2025

What do Disney, Apple, Google, Genentech, Lockheed Martin, Salesforce and Boeing all have in common? Besides being global brands that drive innovation and economic growth, they are among the companies that have hired large numbers of University of California alumni over the last quarter century.

The University, in collaboration with workforce data firm Lightcast, has just released a new data dashboard that tracks UC alumni employment since 2000...

UC Berkeley scientists uncover neural mechanisms behind long-term memory

July 11, 2025

Every day, our brain takes countless fleeting experiences — from walks on the beach to presentations at work — and transforms them into long-term memories. How exactly this works remains a mystery, but neuroscientists believe that it involves a phenomenon called neural replay, in which neurons rapidly recreate the same activation sequences that occurred during the original experience. Surprisingly, neural replays can happen both before and after an experience, suggesting they help in both memory storage and also future planning.

In...

Chan Zuckerberg Initiative, Innovative Genomics Institute Announce New Center for Pediatric CRISPR Cures

July 8, 2025

Personalized CRISPR cures for children born with rare genetic diseases are now a step closer to being more widely available. Today, the Chan Zuckerberg Initiative (CZI) and the Innovative Genomics Institute (IGI) announced the funding of the Center for Pediatric CRISPR Cures (Center). The Center will use CRISPR-based editing technology to advance cures for severe pediatric genetic diseases...

A T. rex with feathers? Scientists say dinosaurs were likely different from what most of us picture

June 26, 2025

Man stands at a railing to look over at a full size cast of a T.rex skeleton

For a long time, paleontologists thought that the famous, long-extinct apex predator, the Tyrannosaurus rex, may have chased its prey at high speeds. Children’s books and movies often showed the dinosaur sprinting at a terrifying pace; you might remember scenes from the 1993 film Jurassic Park in which a massive T. rex chases...

Meet Cathy: L&S SURF Student Spotlight

June 20, 2025

This interview originally appeared on the OURS website.

Headshot of Cathy Kenderski, young woman with blond wavy hair, smiling at camera OURS Student Spotlight: Cathy Kenderski (Fall ’25) | Molecular and Cell Biology

Cathy (she/her) is a 2025 SURF L&S researcher majoring in Molecular and...