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The new wheat line growing in the field. The wheat on the right has the extra flower-bearing spikelets artificially highlighted in pink to show their extent. Credit: University of Adelaide A team of international researchers has discovered a way to produce higher quality wheat. The scientists from the University of Adelaide and the UK’s John … Read more
Summary: When learning how to coordinate a new movement, the nervous system first explores and evaluates many different coordinated patterns. With experience, the nervous system then adapts specific aspects of movements and simultaneously decreases pattern variability. Source: Simon Fraser University Research that examines how the body adapts to new movements is shedding new light on … Read more
Greater mouse-eared bats. Scientists have discovered the first case of acoustic Batesian mimicry in mammals: greater mouse-eared bats imitate the buzzing sound of a stinging insect to deter predatory owls from eating them. In Batesian mimicry, a harmless species imitates a more dangerous one in an evolutionary “ruse” that protects the mimic from would-be predators. … Read more
Source: Halfpoint/Shutterstock Humans evolved with the ability to run long distances using relatively little fuel while chasing animal prey across the savannas millenniums ago. As hunters, early Homo sapiens developed spectacular endurance that allowed our ancestors to outrun other species who may have been faster sprinters but didn’t have as much stamina over the long … Read more
This illustration represents the core theory in a new modeling study led by the University of Washington: The circles represent the immune system’s aging, in which its ability to make new immunity cells remains constant until a person (represented by the human figures) reaches middle- age or older and then falls off significantly. The central … Read more
The single-celled Paramecium bursaria hosts a symbiotic green algae that enables it to photosynthesize. This opens up new lifestyles for the otherwise heterotrophic species. Credit: Anatoly Mikhaltsov via Wikimedia, CC-BY-SA 4.0 We all must play the game of life with the cards we’re dealt, so the common aphorism goes. In biology, this means organisms must … Read more
The dreaded cuts the Henderson State University community has been bracing for were announced Monday, and they’re deep. Chancellor Chuck Ambrose revealed a plan that would do away with undergraduate degree programs in geography, history, political science, public administration, social science, justice, early childhood development, criminal sciences, human services, biology, radiography, chemistry, mathematics, nuclear medicine … Read more
A detailed cryo-EM reconstruction of KIX proteins (magenta) surrounding the central apoferritin shell (cyan). The outer MBP shell is not shown. Credit: Greg Stewart/SLAC National Accelerator Laboratory Sandwiching wiggly proteins between two other layers allows scientists to get the most detailed images yet of a protein that’s key to the spread of acute myeloid leukemia. … Read more
Light microscope images of E. coli cells in transmitted light (left) and reflected light that picks up the red fluorescence of a dye staining the cells’ DNA (right). In normal cells (upper panel), the DNA is spread throughout the cells. But in cells expressing the aberrant plant protein identified in this study (bottom panel) all … Read more
Tiktaalik first became known to humans in 2004, after skulls and other bones of at least 10 specimens turned up in ancient stream beds in the Nunavut Territory of the Arctic. The discoverers, a team of paleontologists including Neil Shubin of the University of Chicago, Ted Daeschler at the Academy of Natural Sciences in Philadelphia, … Read more