Research

Life cycles of some insects adapt well to a changing climate. Others, not so much.

Grasshopper

Postdoctoral fellow César Nufio and his colleagues (IB Professor Caroline Williams, Dr. Lauren Buckley, and Dr. Monica Sheffer) have shared a new study of Colorado grasshoppers that shows grasshoppers that overwinter as juveniles have a head start on those that emerge in the spring. Read more via this UC Berkeley News link here: https://news.berkeley.edu/2025/01/31/life-cycles-of-some-insects-adapt-well-to-a-changing-climate-others-not-so-much/.
 

Podcast: Think you know what dinosaurs were like? Think again.

Professor Jack Tseng with the t-rex in the VLSB atrium
Photo credit: Stanley Luo

"Was the T. rex brightly colored with feathers? Did it run as fast as movies make it seem? How new discoveries challenge our long-held beliefs about the world of paleontology." Integrative Biology Professor Jack Tseng shares his expertise. Read more and listen to the Berkeley Voices podcast through this link: https://news.berkeley.edu/2024/12/30/berkeley-voices-transformation-series-ep-3-dinosaurs/
 

Victor Ortega Jiménez explains how animals move in 101 seconds

Ortega Jiménez explains his research

Learn how Integrative Biology Professor Victor Ortega Jiménez uses high-speed cameras to record fascinating slow motion footage of animals in the wild. Read the article and see the video through this link here. Please also check out this cool article featuring him called "The Hidden World of Electrostatic Ecology" (link here).
 

Professor Jack Tseng and the mystery of the double fangs

An illustration of the fangs of Smilodon fatalis, a saber toothed tiger

In the La Brea Tar Pits, few of the recovered Saber Tooth Tiger skulls still have the sabers attached. But in the batch that had the sabers, a handful exhibited a peculiar feature: the tooth socket for the saber was occupied by two teeth, with the permanent tooth slotted into a groove in the baby tooth. Paleontologist Jack Tseng, Associate Professor in the Department of Integrative Biology, doesn’t think the double fangs were a fluke. Read more in this Berkeley news article linked here.
 

Brooks Lab discovery: lactate rivals glucose as body's major fuel after a carb meal

George Brooks Lab
Integrative Biology graduate student Robert Leija and the whole Professor George Brooks Lab make a discovery. The study was part of a larger NIH-funded study to determine how well people switch from fat to carbohydrate metabolism as they age. Read the Berkeley News Article.
 

Application Now Open: IB Summer Undergraduate Research Experience Program

Justice Williams and Stephen Eun Song
Justice Williams and Stephen Eun Song, 2023 IBSURE interns.

The IB Summer Undergraduate Research Experience (IB SURE) Program has now opened it's application. This program is for undergraduates or recent undergraduates who are considering a graduate degree in the biological sciences. Program runs from May 31 - Aug 9, 2024. Interested students should apply by April 1, 2024. See here for more information.

 

Sparrows uniquely adapted to Bay Area marshes are losing their uniqueness

Phred Benham
Phred Benham, a postdoc in the Bowie Lab.

A new genomic analysis of Savannah sparrows (Passerculus sandwichensis) from around the state — many of them collected as far back as 1889, their specimens stored in the Museum of Vertebrate Zoology at the University of California, Berkeley — shows that over the past 128 years, the Bay Area's sparrow's adaptation to salt water is being diminished by interbreeding with inland sparrows adapted to fresh water. Read More...