To Fight Disease, Animals, Like Plants, Can Tolerate Parasites
Flying Lemurs are the Closest Relatives of Primates
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Credit: Norman Lim, National University of Singapore  Colugo mother and baby (Cynocephalus variegatus) from southeast Asia
Penn State Profiles: Reka Albert, Model Researcher
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 A network-based model of guard cell signaling in plants, created by physicist Reka Albert in collaboration with plant physiologist Sarah Assmann. Drought conditions cause plants to produce the hormone abscisic acid (ABA, top), which triggers guard cells to close leaf pores (bottom), conserving water.
New Software Advances Photo Search and Management in Online Systems
Hair Untangles Woolly Mammoth Puzzle
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Penn State University genomicists Webb Miller and Stephan C. Schuster, in front of the Roche / 454 Life Sciences' Genome Sequencer 20 System that was used to sequence mammoth mitochondrial DNA from the hair of 10 woolly mammoths. Credit: Lynn Tomsho, Penn State
Discovery May Help Defang Viruses
Possible Closest Neutron Star to Earth Found
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Artist's illustration of an "isolated neutron star" — a neutron star that does not have an associated supernova remnant, binary companion, or radio pulsations.  Reproduction is permitted under a Creative Commons Attribution Non-Commercial 3.0 License. Credit: Casey Reed, courtesy of Penn State.
Dominant Cholesterol-Metabolism Ideas Challenged by New Research
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Credit: Robert Schlegel laboratory  Figure 1: Aminophospholipid translocase concentrates the phospholipid PS on the inside of the cell.
Planet Orbiting a Giant Red Star Discovered with Hobby-Eberly Telescope
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The Hobby-Eberly Telescope, one of the largest and most powerful telescopes in the world, photographed at dusk by Penn State Astronomer Lawrence W. Ramsey, a leader in the conception, design, construction, and operation of the telescope. Credit: Lawrence W. Ramsey, Penn State
Surprising New Species of Light-Harvesting Bacterium Discovered in Yellowstone
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David Strong, Penn State  Amaya Garcia, a member of the team that discovered the new bacterium, stands next to the colorful microbial mats in Octopus Spring in Yellowstone National Park.
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