MI weekly selection #584
The carbon impact of permafrost thawing
Researchers have developed a model to assess permafrost thawing’s impact on carbon release. The study suggests that while thawing could release substantial carbon, only a fraction will reach the atmosphere by 2100, but this thawing still presents a significant challenge for climate mitigation efforts.
Full Story: PhysOrg
Rare neuron arrangement in anglerfish
A unique neuron arrangement in frogfish that controls their illicium, a fin used as a lure for hunting, has been discovered. The study reveals that the neurons responsible for this function are located in the dorsolateral zone of the frogfish’s upper back, separate from those controlling other dorsal fins, and this evolutionary adaptation may provide insights into vertebrate motor neuron organization.
Full Story: Popular Science
Enhanced seafloor maps
Using data from the Surface Water and Ocean Topography mission, scientists have created the most detailed map of the seafloor produced by satellites, revealing thousands of new seamounts. This advancement enhances understanding of marine gravity and could improve studies in biodiversity, plate tectonics and tsunami propagation.
Full Story: Eos
Gap between life expectancy, healthy years widens globally
A new study shows that the gap between life expectancy and healthy living has increased to nearly 10 years globally from 2000 to 2019, with the US showing the largest disparity. The study, led by researchers from the Mayo Clinic, highlights that women experience a greater gap than men, driven by noncommunicable diseases.
Origins of early flying vertebrates
Long before birds took to the skies, pterosaurs were the first vertebrates to achieve flight. “It is possible that an early specialization in highly mobile prey such as flying insects contributed to the evolutionary success of the pterodactyloids,” said Alexandra Fernandes, who led the study along with Oliver Rauhut.
Full Story: Earth