'This fossil is about twice as old as the oldest tree, or oldest land plants' -- Researcher Shuhai Xiao.
Native fish discovered with spinal deformities in California's Sacramento-San Joaquin Delta in 2011 were exposed to high levels of selenium from their parents and food they ate as juveniles in the San Joaquin River, new research has found.
A new study reported in the journal Current Biology on February 24 offers some of the first evidence that gray whales might depend on a magnetic sense to find their way through the ocean. This evidence comes from the discovery that whales are more likely to strand themselves on days when solar storms disrupt Earth's magnetic field.
Marine biologists have adopted "soft robotic linguine fingers" as tools to conduct their undersea research. In a study appearing February 24 in the journal Current Biology, scientists found that jellyfish held by ultra-soft robotic fingers expressed significantly fewer stress-related genes than when braced by traditional submersible grippers. Shaped like the famous noodles, this new robotic technology allows for the collection of ecological data in a gentler, less invasive manner.
Several processes in the roundworm C. elegans boost the stress response in cells, incidentally making worms resistant to a high-fat diet and extending their lifespan. UC Berkeley researchers have found another: cells called glia that release a hormone that boosts the unfolded protein response in the endoplasmic reticulum of the worm's cells, effectively doubling lifespan. This could lead to interventions to tune up peripheral cells, such as muscle cells, and prevent age-related deterioration in humans.
Whales undertake some of the longest migrations on earth, often swimming many thousands of miles, over many months, to breed in the tropics. The question is why? In a research paper in Marine Mammal Science, scientists propose that whales that forage in polar waters migrate to low latitudes to maintain healthy skin.
A new study, led by Dr Tim DuBuc and Professor Uri Frank from the Centre for Chromosome Biology at NUI Galway, has found that Hydractinia, a North Atlantic jellyfish that also lives in Galway Bay, reproduces in a similar way to humans but does so far more flexibly.
At least 26 per cent of our oceans need urgent conservation attention to preserve Earth's marine biodiversity, a University of Queensland-led international study has found. Dr Kendall Jones said the international community needed to rapidly increase marine conservation efforts to maintain the health of the world's oceans.
In a study published in Scientific Reports, a team of international researchers led by University of Hawai'i (UH) at Mānoa postdoctoral fellow Jamie Caldwell used a statistical technique typically employed in human epidemiology to determine the ecological risk factors affecting the prevalence of two coral diseases--growth anomalies, abnormalities like coral tumors, and white syndromes, infectious diseases similar to flesh eating bacteria.
A Simon Fraser University-led research team has found significant evidence that human activity in estuaries is impacting juvenile Pacific and Atlantic salmon. The team's review of 167 peer-reviewed studies identified negative impacts from several stressors, including the effects of flood-protecting tidal gates, pollution and habitat modification.