The snipefish, an ocean-dwelling relative of the seahorse, has a very long, skinny snout ending in a tiny mouth. A recent study by UC Davis graduate student Sarah Longo shows that snipefish feed with an elastic-boosted head flick at almost unprecedented speed.
“At as little as two milliseconds, it’s among the fastest feeding events ever recorded for fish,” said Longo, now a postdoctoral researcher at Duke University.
Snipefish, seahorses and pipefish all have long, skinny snouts and use “pivot feeding” to capture food, Longo said, meaning that they pivot their head rapidly to bring their mouth up close to the prey and suck it in.
Photosynthesis is one of the most crucial life processes on earth. It’s how plants get their food, using energy from sunlight to convert water and carbon dioxide from the air into sugars. It’s long been thought that more than 30 percent of the energy produced during photosynthesis is wasted in a process called photorespiration.
A new study led by researchers at the University of California, Davis, suggests that photorespiration wastes little energy and instead enhances nitrate assimilation, the process that converts nitrate absorbed from the soil into protein.
Study shows plants may not lose energy during photosynthesis. (Getty Images)
From moment to moment, the brain processes millions of pieces of information. When people need to focus on a critical task, special circuits in the brain’s attention network kick in to filter the information firehose.
A new project with UC Davis neuroscientists and bioengineers from the University of Florida will explore the brain circuits that allow us to focus our attention.
The study, published in Nature Medicine July 2, found 26 percent of nonhuman primates infected with Zika during early stages of pregnancy experienced miscarriage or stillbirth even though the animals showed few signs of infection.
Non-human primates such as these Rhesus macaques have similar brain development and reproductive physiology to humans, making them a good model to study Zika virus infection. (Photo by K. West, CNPRC)
“Black smokers,” or high-temperature hydrothermal vents at the bottom of the ocean, have generated a lot of scientific interest since they were discovered forty years ago. By belching hot, mineral-laden water, these vents support communities of microbes and animals far from sunlight.
Octopuses incubate their eggs near the slightly warmer streams of water from cool hydrothermal vents deep in the ocean. Credit: Woods Hole Oceanographic Institution
But not all ocean vents are hot. Cool hydrothermal systems, or cool vents, are much harder to spot because the fluids they release are clear and only a bit warmer than surrounding water. Yet they could play a major role in releasing minerals into the deep ocean.
A first-ever tissue implant to safely treat a common jaw defect, temporomandibular joint dysfunction, has been successfully tested in animals by researchers from UC Irvine and UC Davis.
“We were able to show that we could achieve exceptional healing of the TMJ area after eight weeks of treatment,” said UCI Distinguished Professor of biomedical engineering Kyriacos Athanasiou, senior author on the study, published Wednesday in Science Translational Medicine. Athanasiou, who joined UC Irvine last year after several years at UC Davis’ Department of Biomedical Engineering, has been working on the condition for nearly two decades.
Spinal injuries are life-changing, and it used to be thought that recovery of limb movement below the injury was impossible. But new research is showing that with the right therapies, the body can find ways to work around spinal injuries. Professor Karen Moxon of the UC Davis Department of Biomedical Engineering talks about her work with rats and how they can recover from injury.
Third-grader Jessica was quiet in group discussions and did not see herself as a strong science student. But after an eight-week unit in school where she was able to read, write about, collect data on and even draw and photograph ladybugs for a project, she began to see herself as scientist in her own right – explaining the life stages and lifestyles of ladybugs to grownups with conviction.
Citizen science projects can engage kids, a UC Davis study finds.