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Categories: Biology: Zoology, Geoscience: Earth Science

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Biology: Biochemistry Biology: Marine Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Invasive Species Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
Published

Shark-bitten orcas in the Northeastern Pacific could be a new population of killer whale      (via sciencedaily.com)     Original source 

Researchers believe a group of killer whales observed hunting marine mammals including sperm whales, as well as a sea turtle, in the open ocean off California and Oregon could be a new population. Based on available evidence, the researchers posit that the 49 orcas could belong to a subpopulation of transient killer whales or a unique oceanic population found in waters off the coast of California and Oregon.

Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Sea Life Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Groundbreaking study reveals extensive leatherback turtle activity along U.S. coastline      (via sciencedaily.com)     Original source 

A new study provides groundbreaking findings that offer insights on the migration and foraging patterns of leatherback sea turtles along the Northwest Atlantic shelf.

Biology: General Biology: Marine Biology: Zoology Ecology: Animals Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Diverse habitats help salmon weather unpredictable climate changes      (via sciencedaily.com)     Original source 

Restored salmon habitat should resemble financial portfolios, offering fish diverse options for feeding and survival so that they can weather various conditions as the climate changes, a new study shows.

Computer Science: General Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues
Published

Information overload is a personal and societal danger      (via sciencedaily.com)     Original source 

We are all aware of the dangers of pollution to our air, water, and earth. In a recently published letter, scientists are advocating for the recognition and mitigation of another type of environmental pollution that poses equivalent personal and societal dangers: information overload.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geology Geoscience: Landslides Space: Exploration Space: General Space: The Solar System
Published

Surprising insights about debris flows on Mars      (via sciencedaily.com)     Original source 

The period that liquid water was present on the surface of Mars may have been shorter than previously thought. Channel landforms called gullies, previously thought to be formed exclusively by liquid water, can also be formed by the action of evaporating CO2 ice, according to a new study.

Biology: Zoology Ecology: Animals Ecology: Extinction Ecology: Invasive Species Ecology: Nature Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Severe Weather
Published

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.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Molecular Biology: Zoology Ecology: Animals
Published

Sleep-wake rhythm: Fish change our understanding of sleep regulation      (via sciencedaily.com)     Original source 

Researchers have discovered that some fish -- unlike humans -- do not need orexin to stay awake. This molecule was thought to be necessary for normal wake and sleep rhythms in vertebrates. Humans without orexin suffer from narcolepsy.

Biology: Zoology
Published

Training dairy cows with positive reinforcement can turn otherwise stressful events into play      (via sciencedaily.com)     Original source 

Dairy cows receive a huge amount of care during their lives on a farm, but procedures, especially restraining during procedures, can be stressful for some animals. Positive reinforcement training -- or training with a reward to achieve a desired behavior -- has shown promise to reduce this fear in other species.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Environmental: Water Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology
Published

Sulfur and the origin of life      (via sciencedaily.com)     Original source 

A new study shines a spotlight on sulfur, a chemical element that, while all familiar, has proved surprisingly resistant to scientific efforts in probing its role in the origin of life.

Biology: Biochemistry Biology: Zoology
Published

Interactions with dogs can increase brainwaves associated with stress relief and heightened concentration      (via sciencedaily.com)     Original source 

Spending quality time with dogs reduces stress and increases the power of brain waves associated with relaxation and concentration, according to a new study.

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

Menopause explains why some female whales live so long      (via sciencedaily.com)     Original source 

Females of some whale species have evolved to live drastically longer lives so they can care for their families, new research shows.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Water Geoscience: Earth Science Geoscience: Geography Geoscience: Oceanography
Published

With discovery of roundworms, Great Salt Lake's imperiled ecosystem gets more interesting      (via sciencedaily.com)     Original source 

Biologists announce the discovery of numerous species of roundworm in the highly saline waters of Great Salt Lake, the vast terminal lake in northwestern Utah that supports millions of migratory birds. Previously, brine shrimp and brine flies were the only known multicellular animals living in the water column. The scientists found nematodes, belonging to a family known for inhabiting extreme environments, in the lake's microbialites, reef-like structures covering about a fifth of the lakebed.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: General Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Geography Geoscience: Oceanography
Published

Marine heat waves disrupt the ocean food web in the northeast Pacific Ocean      (via sciencedaily.com)     Original source 

Marine heat waves in the northeast Pacific Ocean create ongoing and complex disruptions of the ocean food web that may benefit some species but threaten the future of many others, a new study has shown.

Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Severe Weather
Published

Drought, soil desiccation cracking, and carbon dioxide emissions: an overlooked feedback loop exacerbating climate change      (via sciencedaily.com)     Original source 

Soil stores 80 percent of carbon on earth, yet with increasing cycles of drought, that crucial reservoir is cracking and breaking down, releasing even more greenhouse gases creating an amplified feedback loop that could accelerate climate change.

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.

Biology: Zoology Ecology: Animals Geoscience: Geography
Published

New study shows how AI can help us better understand global threats to wildlife      (via sciencedaily.com)     Original source 

Researchers used AI to scour information from websites and social media to map bat hunting and trade. Research found evidence of bat exploitation in 22 countries that had not previously been identified by traditional academic research. Following concerns about the reliability of the IUCN Red List, new research demonstrates how AI's ability to filter vast amounts of online data can support wildlife conservation.

Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Grounding zone discovery explains accelerated melting under Greenland's glaciers      (via sciencedaily.com)     Original source 

Researchers have conducted the first large-scale observation and modeling study of northwest Greenland's Petermann Glacier. Their findings reveal the intrusion of warm ocean water beneath the ice as the culprit in the accelerated melting it has experienced since the turn of the century, and their computer predictions indicate that potential sea level rise will be much worse than previously estimated.

Biology: Botany Biology: Marine Biology: Zoology Paleontology: Dinosaurs Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

Alaska dinosaur tracks reveal a lush, wet environment      (via sciencedaily.com)     Original source 

A large find of dinosaur tracks and fossilized plants and tree stumps in far northwestern Alaska provides new information about the climate and movement of animals near the time when they began traveling between the Asian and North American continents roughly 100 million years ago.