School of Natural Sciences

This is part of a series of profiles of new UC Merced Bobcats enrolled for the fall 2025 semester. 

Rolando Ortega is closing in on his dream of earning a Ph.D. This fall, the Cal-Bridge scholar from Los Angeles County joins UC Merced to start his doctoral journey. With experience spanning national labs, NASA outreach and cutting-edge research, Ortega is ready to design devices that push the boundaries of science and technology.

Starting a university from scratch isn’t for the faint of heart — or the slow of foot. Lucky for UC Merced, Anne Myers Kelley and David Kelley are neither.

Anne, a former Olympic marathon trials qualifier, and David, a competitive cyclist, were no strangers to long, grueling efforts when they packed up their lab gear and headed west from Kansas State University in 2003.

In addition to being used recreationally, marijuana and cannabidiol, or CBD, one of the cannabinoids produced by the marijuana plant, are thought to have medical benefits such as helping with chemotherapy-induced nausea, treating epilepsy, relieving pain and helping with a variety of mental health issues.

Department of Molecular and Cell Biology Professor Chris Amemiya, former interim director of the Health Sciences Research Institute, has been honored by the Pan American Society for Evolutionary Developmental Biology (PASEDB) with the Service Award.

A team of UC Merced researchers has shown that tiny artificial cells can accurately keep time, mimicking the daily rhythms found in living organisms. Their findings shed light on how biological clocks stay on schedule despite the inherent molecular noise inside cells.

More than 100 million land mines remain buried around the world, posing a threat in approximately 70 countries and territories, and killing or injuring about 5,000 people, most of them civilians, every year. 

As the world’s geopolitical landscape shifts, nine scientists studying different aspects of warfare ecology from seven countries — Poland, Ukraine, Norway, Spain, the United States, Finland and Croatia — are warning against the growing deployment of land mines as countries bordering Russia withdraw from global conventions restricting their use.

Professor Andy LiWang knows what makes us tick, at least at a cellular level.

His research into the mechanisms of the oldest biological clock known to humankind has led him to understand how proteins — and hence cells — can tell time.

It has also led the UC Merced biochemist to become this year's recipient of the prestigious Dorothy Crowfoot Hodgkin award, sponsored by the Rigaku Corporation and given by The Protein Society (TPS).

Shark Week starts Sunday and Professor Sora Kim will be featured again this year in a special airing at 9 p.m. Monday, titled “Jaws vs. Mega Croc,” and the filming allowed her to swim with a Nile crocodile.

“I flew to Florida and learned about crocodiles – their evolution, strength, physiology and behavior. More interactions are being recorded between sharks and crocodiles these days, so I also needed to learn about these situations,” she said.

The National Institutes of Health are backing Professor Clarissa Nobile ’s mission to understand the mechanisms by which microbes form biofilms, specifically those that can be hazardous to human health.

With careful planning and a little luck, researchers found a surprising upside to hurricanes after a Category 4 storm disrupted their expedition off the coast of Mexico.

The team was able to sample the ocean right after the storm passed and found that the storms churn the ocean so powerfully and deeply — up to thousands of meters — that nutrient-rich, cold water is brought to the surface.