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News Archive - Kim McDonald

Evolution of Kangaroo-Like Jerboas Sheds Light on Limb Development

October 8, 2015

With their tiny forelimbs and long hindlimbs and feet, jerboas are oddly proportioned creatures that look something like a pint-size cross between a kangaroo and the common mouse. How these 33 species of desert-dwelling rodents from Northern Africa and Asia evolved their remarkable limbs over the past 50 million years from a five-toed, quadrupedal ancestor shared with the modern mouse to the three-toed bipedal jerboa is detailed in a paper published in this week’s issue of the journal Current Biology.

Four UC San Diego Faculty Receive NIH New Innovator Awards

October 6, 2015

Four professors at UC San Diego will receive New Innovator Awards from the National Institutes of Health of approximately $2.2 million over the next five years to support their “unusually innovative research,” the NIH announced today.

Study Shows Africanized Bees Continue to Spread in California

September 11, 2015

A study conducted by biologists at UC San Diego has found that the Africanized honey bee—an aggressive hybrid of the European honey bee—is continuing to expand its range northward since its introduction into Southern California in 1994.

Study Finds Black Bears in Yosemite Forage Primarily on Plants and Nuts

August 24, 2015

Black bears in Yosemite National Park that don’t seek out human foods subsist primarily on plants and nuts, according to a study conducted by biologists at UC San Diego who also found that ants and other sources of animal protein, such as mule deer, make up only a small fraction of the bears’ annual diet.

Study Provides Hope for Some Human Stem Cell Therapies

August 20, 2015

An international team of scientists headed by biologists at UC San Diego has discovered that an important class of stem cells known as human “induced pluripotent stem cells,” or iPSCs, which are derived from an individual’s own cells, can be differentiated into various types of functional cells with different fates of immune rejection.

Resolving Social Conflict Is Key to Survival of Bacterial Communities

July 22, 2015

Far from being selfish organisms whose sole purpose is to maximize their own reproduction, bacteria in large communities work for the greater good by resolving a social conflict among individuals to enhance the survival of their entire community.

Flatworms Could Replace Mammals for Some Toxicology Tests

June 29, 2015

Laboratories that test chemicals for neurological toxicity could reduce their use of laboratory mice and rats by replacing these animal models with tiny aquatic flatworms known as freshwater planarians, according to study by UC San Diego scientists.

Scientists Create Synthetic Membranes That Grow Like Living Cells

June 22, 2015

Chemists and biologists at UC San Diego have succeeded in designing and synthesizing an artificial cell membrane capable of sustaining continual growth, just like a living cell.

Discovery Paves Way for New Kinds of Superconducting Electronics

June 22, 2015

Physicists at UC San Diego have developed a new way to control the transport of electrical currents through high-temperature superconductors—materials discovered nearly 30 years ago that lose all resistance to electricity at commercially attainable low temperatures.

Two UC San Diego Biologists Named Pew Biomedical Scholars

June 11, 2015

Two biology professors at UC San Diego have been named Pew scholars in the biomedical sciences, an award given by the Pew Charitable Trusts this year to only 22 promising early-career researchers in the nation.
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