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Categories: Biology: Zoology, Space: Structures and Features

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Biology: Zoology Ecology: Animals Ecology: Extinction
Published

Insecticides contributed to loss of butterflies across American Midwest, study finds      (via sciencedaily.com)     Original source 

Insecticide use is a major factor causing a decrease in the size and diversity of butterfly populations across the US Midwest, according to a new study.

Biology: Biochemistry Biology: Botany Biology: Evolutionary Biology: Zoology Ecology: Endangered Species
Published

Interaction with insects accelerates plant evolution      (via sciencedaily.com)     Original source 

Researchers have discovered that plants benefit from a greater variety of interactions with pollinators and herbivores. Plants that are pollinated by insects and have to defend themselves against herbivores have evolved to be better adapted to different types of soil.

Offbeat: General Offbeat: Space Space: Astrophysics Space: General Space: Structures and Features
Published

What happens when neutron stars collide?      (via sciencedaily.com)     Original source 

New simulations show that hot neutrinos created at the interface of merging binary neutron stars are briefy trapped and remain out of equilibrium with the cold cores of the stars for 2 to 3 milliseconds.

Biology: Biochemistry Biology: Biotechnology Biology: General Biology: Zoology
Published

Odors are encoded in rings in the brain of migratory locusts      (via sciencedaily.com)     Original source 

Researchers describe how odors are encoded in the antennal lobe, the olfactory center in the brain of migratory locusts. Using transgenic locusts and imaging techniques, the researchers were able to show a ring-shaped representation of odors in the brain. The pattern of olfactory coding in the antennal lobe is the same at all stages of locust development. A better understanding of olfactory coding in the locust brain should help to learn more about how the behavior of these insects is controlled, especially their swarming.

Biology: General Biology: Zoology Ecology: Animals Offbeat: General Offbeat: Plants and Animals
Published

Fishy parenting? Punishing offspring encourages cooperation      (via sciencedaily.com)     Original source 

Scientists discovered that Neolamprologus savoryi fish use punishment to encourage offspring to cooperate in brood care, revealing advanced cognitive abilities previously thought unique to higher vertebrates. This study highlights that punishment for promoting cooperation exists beyond human societies, prompting a reevaluation of animal intelligence.

Biology: Biochemistry Biology: Marine Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: Invasive Species Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Oceanography
Published

Restored rat-free islands could support hundreds of thousands more breeding seabirds      (via sciencedaily.com)     Original source 

Archipelago case-study shows that removing invasive rats and restoring native vegetation could help bring back hundreds of thousands of breeding pairs of seabirds lost to tropical islands. Calculating that there are enough fish to sustain restored seabird populations should be an important consideration for restoration projects, scientists say. Restored seabird populations also provide huge boost to the health of surrounding coral reef ecosystems through restored nutrient cycles.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Astronomers see a massive black hole awaken in real time      (via sciencedaily.com)     Original source 

In late 2019 the previously unremarkable galaxy SDSS1335+0728 suddenly started shining brighter than ever before. To understand why, astronomers have used data from several space and ground-based observatories, including the European Southern Observatory's Very Large Telescope (ESO's VLT), to track how the galaxy's brightness has varied. In a study out today, they conclude that they are witnessing changes never seen before in a galaxy -- likely the result of the sudden awakening of the massive black hole at its core.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Ecology: Extinction Ecology: Invasive Species
Published

Nile perch invasion triggered genetic bottlenecks in Lake Victoria's endemic cichlids      (via sciencedaily.com)     Original source 

Newfound evidence reveals that the upsurge of the exotic Nile perch in Lake Victoria had long-lasting effects on the genetic diversity of various local cichlid species, report scientists. Through large-scale comparative genomic analyses, the researchers found concrete proof in the collective genome of multiple species that this artificially introduced perch decimated many local fish populations, causing a 'bottleneck effect.'

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features
Published

Modified gravity theory: A million light years and still going      (via sciencedaily.com)     Original source 

In a breakthrough discovery that challenges the conventional understanding of cosmology, scientists have unearthed new evidence that could reshape our perception of the cosmos. New research shows that rotation curves of galaxies stay flat indefinitely far out, corroborating predictions of modified gravity theory as an alternative to dark matter.

Offbeat: General Offbeat: Space Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

Scientists develop 3D printed vacuum system that aims to trap dark matter      (via sciencedaily.com)     Original source 

Using a specially designed 3D printed vacuum system, scientists have developed a way to 'trap' dark matter with the aim of detecting domain walls, this will be a significant step forwards in unravelling some of the mysteries of the universe.

Biology: Biochemistry Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Marine Biology: Microbiology Biology: Zoology Ecology: Research Ecology: Sea Life
Published

Previously uncharacterized parasite uncovered in fish worldwide      (via sciencedaily.com)     Original source 

Using genome reconstruction, scientists unveiled a once 'invisible' fish parasite present in many marine fish world-wide that belongs to the apicomplexans, one of the most important groups of parasites at a clinical level. However, it had gone unnoticed in previous studies. The parasite is geographically and taxonomically widespread in fish species around the planet, with implications for commercial fishing and oceanic food webs.

Biology: General Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: Nature
Published

'Lost' birds list will aid in protecting species      (via sciencedaily.com)     Original source 

A group of scientists has released the first comprehensive list of birds that haven't been documented with sound or video in more than a decade.

Anthropology: General Biology: Evolutionary Biology: Marine Biology: Zoology Ecology: Extinction Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Dinosaurs Paleontology: Fossils Paleontology: General
Published

Ancient polar sea reptile fossil is oldest ever found in Southern Hemisphere      (via sciencedaily.com)     Original source 

An international team of scientists has identified the oldest fossil of a sea-going reptile from the Southern Hemisphere -- a nothosaur vertebra found on New Zealand's South Island. 246 million years ago, at the beginning of the Age of Dinosaurs, New Zealand was located on the southern polar coast of a vast super-ocean called Panthalassa. 'The nothosaur found in New Zealand is over 40 million years older than the previously oldest known sauropterygian fossils from the Southern Hemisphere.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Pair of merging quasars at cosmic dawn      (via sciencedaily.com)     Original source 

Astronomers have discovered a double-record-breaking pair of quasars. Not only are they the most distant pair of merging quasars ever found, but also the only pair confirmed in the bygone era of the Universe's earliest formation.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Investigating the origins of the crab nebula      (via sciencedaily.com)     Original source 

A team of scientists used NASA's James Webb Space Telescope to parse the composition of the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life
Published

Is magnesium the sleeping potion that enables sandhoppers to survive cold winters?      (via sciencedaily.com)     Original source 

A new study has shown for the first time that when sandhoppers want to enter a period of deep sleep each winter they have the means through which to increase the magnesium levels in their bodies -- in some instances more than doubling them. Essentially acting as a natural narcotic, the magnesium puts the sandhopper into a torpid state and this enforced rest means that the creatures can stay hidden in burrows up to 30cm beneath the beach surface, to some extent buffered from wintry conditions.

Offbeat: General Offbeat: Space Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

High-precision measurements challenge our understanding of Cepheids      (via sciencedaily.com)     Original source 

Scientists have clocked the speed of Cepheid stars -- 'standard candles' that help us measure the size of the universe -- with unprecedented precision, offering exciting new insights about them.

Anthropology: Early Humans Biology: Biochemistry Biology: General Biology: Zoology Ecology: Nature Paleontology: General
Published

Early Homo sapiens facilitated the establishment of the Bonelli's eagle in the Mediterranean 50,000 years ago      (via sciencedaily.com)     Original source 

Scientists have unraveled the ancestral history of one of the most iconic birds of prey in the current Iberian fauna: the Bonelli's eagle (Aquila fasciata). The study combines evidence from several disciplines, including palaeontology, genetics and ecology, to answer questions about when and why the Bonelli's eagle, a species primarily found in tropical and subtropical areas, colonized the Mediterranean Basin.

Biology: Biochemistry Biology: General Biology: Zoology Ecology: Animals Paleontology: Early Mammals and Birds
Published

Tiny New Zealand bird delivers a lesson in birdsong evolution      (via sciencedaily.com)     Original source 

Scientists are rethinking the evolution of vocal learning in birds. New Zealand's smallest bird, the rifleman or titipounamu, may have a rudimentary version of the talent possessed by parrots, hummingbirds and songbirds.