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Categories: Ecology: Nature, Space: Astronomy

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Biology: Marine Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

Ancient giant dolphin discovered in the Amazon      (via sciencedaily.com)     Original source 

Measuring between 3 to 3.5 meters, 16 million years old: Paleontologists have announced the discovery of a new species of freshwater dolphin in the Peruvian Amazon region. Surprisingly, its closest living relatives can be found in the river dolphins of South Asia.

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

Scientists find one of the most ancient stars that formed in another galaxy      (via sciencedaily.com)     Original source 

The first generation of stars transformed the universe. Inside their cores, simple hydrogen and helium fused into a rainbow of elements. When these stars died, they exploded and sent these new elements across the universe. The iron running in your veins and the calcium in your teeth and the sodium powering your thoughts were all born in the heart of a long-dead star.

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

Astrophysicist's research could provide a hint in the search for dark matter      (via sciencedaily.com)     Original source 

Dark matter is one of science's greatest mysteries. Although it is believed to make up about 85 percent of the cosmos, scientists know very little about its fundamental nature. Research provides some of the most stringent constraints on the nature of dark matter yet. It also revealed a small hint of a signal that, if real, could be confirmed in the next decade or so.

Space: Astronomy Space: Exploration Space: General
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Simulated microgravity effects cause marked changes in gene expression rhythms in humans, study finds      (via sciencedaily.com)     Original source 

Simulated effects of microgravity, created by 60 days of constant bed rest, severely disrupts rhythmic gene expression in humans, according to a new study.

Biology: Biochemistry Biology: Zoology Ecology: Animals Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: Water
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Artificial streams reveal how drought shapes California's alpine ecosystems      (via sciencedaily.com)     Original source 

Researchers have used a series of artificial stream channels to mimic the behavior of headwater creeks under future climate change scenarios. They found that drier conditions shifted the life cycles of the algae and insects that form the base of the alpine food web. However, because species adjusted to the shifts in a variety of ways, the stream ecosystems were generally resilient to the changing conditions.

Biology: Marine Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Paleontology: Climate
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A wetter world recorded in Australian coral colony      (via sciencedaily.com)     Original source 

When climate scientists look to the future to determine what the effects of climate change may be, they use computer models to simulate potential outcomes such as how precipitation will change in a warming world. Some scientists are also looking at something a little more tangible: coral.

Biology: Marine Biology: Zoology Ecology: Animals Ecology: Nature Ecology: Sea Life Environmental: General Geoscience: Environmental Issues Geoscience: Geography
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Fish species that move rapidly toward the poles due to global warming decline in abundance, study finds      (via sciencedaily.com)     Original source 

A new study has found a decline in the abundance of marine fish species that move rapidly toward the poles to escape rising sea temperatures. The researchers explain that many animal species are currently moving toward cooler regions as a result of global warming, but the velocity of such range shifts varies greatly for different species. Examining thousands of populations from almost 150 fish species, the researchers show that contrary to the prevailing view, rapid range shifts coincide with widescale population declines.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Ecology: Nature
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Scientists discover how Diadem butterfly mimics African Queen      (via sciencedaily.com)     Original source 

Scientists have discovered how female Diadem butterflies have evolved to look like African Queen butterflies to repel predators.

Biology: General Biology: Zoology Ecology: Nature Environmental: Biodiversity Environmental: Water Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
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Eyes open and toes out of water: How a giant water bug reached the island of Cyprus      (via sciencedaily.com)     Original source 

A new visitor was reported on the coast of Cyprus, thanks to the growing power of citizen science. Researchers collected information and specimens through personal communication with amateur naturalists, but also through the internet, in order to compose the mosaic of repeated appearances of a giant water bug on the eastern shoreline of the island.

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

Largest-ever map of universe's active supermassive black holes released      (via sciencedaily.com)     Original source 

Astronomers have charted the largest-ever volume of the universe with a new map of active supermassive black holes living at the centers of galaxies. Called quasars, the gas-gobbling black holes are, ironically, some of the universe's brightest objects. The new map logs the location of about 1.3 million quasars in space and time, the furthest of which shone bright when the universe was only 1.5 billion years old. The work could help scientists better understand the properties of dark matter.

Biology: General Biology: Zoology Ecology: Animals Ecology: Nature Geoscience: Geography
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Global wildlife study during COVID-19 shows rural animals are more sensitive to human activity      (via sciencedaily.com)     Original source 

One of the largest studies on wildlife activity reveals that wild animals react differently to humans depending on where the animals live and what they eat. Bigger herbivores -- plant-eating animals like deer or moose -- tend to become more active when humans are around, while meat-eaters like wolves or wolverines tend to be less active, preferring to avoid risky encounters.

Biology: Botany Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Offbeat: General Offbeat: Plants and Animals
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Why do tree frogs lay their eggs on the ground?      (via sciencedaily.com)     Original source 

A curious aspect of tree frogs is that they often lay their eggs on the ground where the risk of predation by natural enemies is greater than in the trees where they live. A research team suggested that the reason for this behavior is to protect the eggs from low temperatures. Their findings highlight the challenge faced by tree frogs: Should they attempt to maintain an optimal temperature for their eggs or risk predation?

Biology: Biochemistry Biology: General Biology: Zoology Ecology: General Ecology: Nature Ecology: Research Environmental: Ecosystems Geoscience: Earth Science Geoscience: Geography
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Arctic nightlife: Seabird colony bursts with sound at night      (via sciencedaily.com)     Original source 

Acoustic recordings of a colony of little auks reveal their nocturnal activities and offer valuable monitoring means for avian biology in the Arctic.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
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New research suggests that our universe has no dark matter      (via sciencedaily.com)     Original source 

A new study challenges the current model of the universe by showing that, in fact, it has no room for dark matter.

Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: Invasive Species Ecology: Nature Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Severe Weather
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Tropical birds could tolerate warming better than expected, study suggests      (via sciencedaily.com)     Original source 

We expect tropical animals to handle a certain degree of heat, but not wild swings in temperature. That seems to be true for tropical ectotherms, or 'cold-blooded' animals such as amphibians, reptiles, and insects. However, in a new study of 'warm-blooded' endotherms, a research team found tropical birds can handle thermal variation just fine.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
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Cheers! NASA's Webb finds ethanol, other icy ingredients for worlds      (via sciencedaily.com)     Original source 

What do margaritas, vinegar, and ant stings have in common? They contain chemical ingredients that NASA's James Webb Space Telescope has identified surrounding two young protostars known as IRAS 2A and IRAS 23385. Although planets are not yet forming around those stars, these and other molecules detected there by Webb represent key ingredients for making potentially habitable worlds.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
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Explaining a supernova's 'string of pearls'      (via sciencedaily.com)     Original source 

Physicists often turn to the Rayleigh-Taylor instability to explain why fluid structures form in plasmas, but that may not be the full story when it comes to the ring of hydrogen clumps around supernova 1987A, research suggests. It looks like the same mechanism that breaks up airplane contrails might be at play in forming the clumps of hydrogen gas that ring the remnant of supernova 1987A.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Nature Ecology: Sea Life Geoscience: Environmental Issues Geoscience: Geography
Published

High resolution imagery advances the ability to monitor decadal changes in emperor penguin populations      (via sciencedaily.com)     Original source 

Emperor penguin populations have been exceedingly difficult to monitor because of their remote locations, and because individuals form breeding colonies on seasonal sea ice fastened to land (known as fast ice) during the dark and cold Antarctic winter. New research that incorporates very high-resolution satellite imagery with field-based validation surveys and long-term data has provided the first multi-year time series that documents emperor penguin global population trends.