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Categories: Offbeat: Plants and Animals, Space: Cosmology

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Biology: Biochemistry Biology: Biotechnology Biology: Evolutionary Biology: General Biology: Zoology Ecology: Animals Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
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Researchers find genetic stability in a long-term Panamanian hybrid zone of manakin birds      (via sciencedaily.com)     Original source 

We often think of species as separate and distinct, but sometimes they can interbreed and create hybrids. When this happens consistently in a specific area, it forms what's known as a hybrid zone. These zones can be highly dynamic or remarkably stable, and studying them can reveal key insights into how species boundaries evolve -- or sometimes blur. Researchers now describe a hybrid zone between two manakin species in Panama that has overall remained relatively stable over the past 30 years.

Biology: Cell Biology Biology: Developmental Biology: General Biology: Molecular Offbeat: General Offbeat: Plants and Animals
Published

From takeoff to flight, the wiring of a fly's nervous system is mapped      (via sciencedaily.com)     Original source 

Although a fly's motor neurons are few, it performs remarkable aerial and terrestrial feats. A wiring diagram recently created of the motor circuits in the central nervous system of the fruit fly is providing detailed information on how the nerve coordination of leg movements differs from that controlling the wings. Such studies reveal the unexpected complexity of the fly's tiny motor system. They also advance the understanding of how the central nervous system in animals coordinates individual muscles to carry out a variety of behaviors.

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

Pillars of creation star in new visualization from NASA's Hubble and Webb telescopes      (via sciencedaily.com)     Original source 

Made famous in 1995 by NASA's Hubble Space Telescope, the Pillars of Creation in the heart of the Eagle Nebula have captured imaginations worldwide with their arresting, ethereal beauty. Now, NASA has released a new 3D visualization of these towering celestial structures using data from NASA's Hubble and James Webb space telescopes. This is the most comprehensive and detailed multiwavelength movie yet of these star-birthing clouds.

Biology: Biochemistry Biology: Cell Biology Biology: General Ecology: Nature Offbeat: General Offbeat: Plants and Animals
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Non-stop flight: 4,200 km transatlantic flight of the Painted Lady butterfly mapped      (via sciencedaily.com)     Original source 

In October 2013 a researcher made a surprising discovery of Painted Lady Butterflies on the Atlantic beaches of French Guiana -- a species not typically found in South America. This unusual sighting prompted an international study to investigate the origin of these butterflies.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
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A hidden treasure in the Milky Way -- Astronomers uncover ultrabright x-ray source      (via sciencedaily.com)     Original source 

Astronomers uncovered that a well-known X-ray binary, whose exact nature has been a mystery to scientists until now, is actually a hidden ultraluminous X-ray source.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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Star clusters observed within a galaxy in the early Universe      (via sciencedaily.com)     Original source 

The history of how stars and galaxies came to be and evolved into the present day remains among the most challenging astrophysical questions to solve yet, but new research brings us closer to understanding it. New insights about young galaxies during the Epoch of Reionization have been revealed. Observations with the James Webb Space Telescope (JWST) of the galaxy Cosmic Gems arc (SPT0615-JD) have confirmed that the light of the galaxy was emitted 460 million years after the big bang. What makes this galaxy unique is that it is magnified through an effect called gravitational lensing, which has not been observed in other galaxies formed during that age.

Biology: Biochemistry Offbeat: General Offbeat: Plants and Animals
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First conclusive evidence that a terrestrial leech species can jump      (via sciencedaily.com)     Original source 

A new study presents video evidence that at least one species of terrestrial leech can jump, behavior that scientists have debated for more than a century.

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: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Molecular Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Where to put head and tail?      (via sciencedaily.com)     Original source 

Formation of the body axes is a critical part of embryonic development. They guarantee that all body parts end up where they belong and that no ears grow on our backs. The head-tail axis, for example, determines the orientation of the two ends of the body. It was previously assumed that this axis is largely determined by the interplay between the Nodal and BMP signals. However, there appears to be another player in this system, as researchers have now discovered by using an embryo-like model system they developed. In the absence of BMP, the signalling molecule beta-catenin takes on the role of the Nodal antagonist. This new mechanism could be a flexible solution for axis formation in embryos with different shapes.

Biology: Cell Biology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
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Wear it, then recycle: Designers make dissolvable textiles from gelatin      (via sciencedaily.com)     Original source 

Researchers hope their DIY machine will help designers around the world experiment with making their own, sustainable fashion and other textiles from a range of natural ingredients -- maybe even the chitin in crab shells or agar-agar from algae.

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.

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
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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.

Biology: General Ecology: Extinction Ecology: Nature Ecology: Research Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
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Sharks have depleted functional diversity compared to the last 66 million years      (via sciencedaily.com)     Original source 

New research has found that sharks retained high levels of functional diversity for most of the last 66 million years, before steadily declining over the last 10 million years to its lowest value in the present day.

Biology: Biochemistry Biology: General Biology: Genetics Biology: Zoology Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
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Sweaty cattle may boost food security in a warming world      (via sciencedaily.com)     Original source 

Climate change is making it more difficult to raise cattle -- growth and reproduction are affected by heat -- so it's critical to breed cattle better adapted to a hotter and longer summer. A new study shows it's possible to identify the genes within breeds of cattle that would lead to the sweatiest, heat-tolerant offspring.