Biology: Biochemistry Biology: Zoology Ecology: Endangered Species Environmental: Water Geoscience: Oceanography
Published

Researchers record images and data of a shark experiencing a boat strike      (via sciencedaily.com)     Original source 

Researchers have captured what they believe is the first ever video of a shark or any large marine animal being struck by a boat.

Ecology: Endangered Species Geoscience: Geography Geoscience: Oceanography Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Whale shark tracked for record-breaking four years      (via sciencedaily.com)     Original source 

Researchers have been tracking a 26-foot endangered whale shark -- named 'Rio Lady' -- with a satellite transmitter for more than four years -- a record for whale sharks and one of the longest tracking endeavors for any species of shark.

Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues
Published

A window of opportunity for climate change and biodiversity      (via sciencedaily.com)     Original source 

World leaders must take advantage of a pivotal window of opportunity for forging a much-needed joined-up approach to tackle climate change and biodiversity loss, say scientists. Without this, work on tackling either crisis could inadvertently harm progress on the other.

Ecology: Endangered Species Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science
Published

Tropical plant species are as threatened by climate change as widely feared, study confirms      (via sciencedaily.com)     Original source 

Biologists who set out to better understand the effects of climate change on plant species in tropical mountain regions found that even small variations in temperature and moisture can have massive impacts, threatening not only plants that live there, but also the ecosystems they support. A study based on labor-intensive fieldwork and analysis in tropical mountain regions shows that a warmer and drier climate will lead to massive losses of plant species.

Anthropology: General Biology: Evolutionary Biology: General Paleontology: Fossils Paleontology: General
Published

New snake discovery rewrites history, points to North America's role in snake evolution      (via sciencedaily.com)     Original source 

A new species of fossil snake unearthed in Wyoming is rewriting our understanding of snake evolution. The discovery, based on four remarkably well-preserved specimens found curled together in a burrow, reveals a new species named Hibernophis breithaupti. This snake lived in North America 34 million years ago and sheds light on the origin and diversification of boas and pythons.

Anthropology: General
Published

Human occupation in southeast Indonesia dating back 42,000 years      (via sciencedaily.com)     Original source 

Evidence of human occupation in southeast Indonesia dating back 42,000 years offers fresh clues on the route taken by some of the first humans to arrive in our region, according to a new study.

Biology: Biochemistry Biology: Botany Biology: General Ecology: Endangered Species Geoscience: Environmental Issues
Published

Groundcherry gets genetic upgrades: Turning a garden curiosity into an agricultural powerhouse      (via sciencedaily.com)     Original source 

Imagine a small fruit that tastes like a cross between a tomato and a pineapple, wrapped in its own natural paper lantern. That's the groundcherry (Physalis grisea) -- a little-known relative of tomatoes that's been quietly growing in gardens and small farms across North America for centuries. Now, this humble fruit is getting a 21st-century upgrade thanks to some cutting-edge genetic research.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Animals Ecology: Endangered Species Ecology: Sea Life Offbeat: General Offbeat: Plants and Animals
Published

The courtship of leopard seals off the coast of South America      (via sciencedaily.com)     Original source 

A pioneering study has unveiled the first paired observations of sexual behavior and vocalizations in wild leopard seals. The study on the mysterious leopard seal represents a major advance in understanding the behavior of one of the most difficult apex predators to study on Earth.

Anthropology: Early Humans Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Paleontology: Fossils
Published

Ancient microbes offer clues to how complex life evolved      (via sciencedaily.com)     Original source 

Researchers have discovered that a single-celled organism, a close relative of animals, harbors the remnants of ancient giant viruses woven into its own genetic code. This finding sheds light on how complex organisms may have acquired some of their genes and highlights the dynamic interplay between viruses and their hosts.

Biology: Botany Ecology: Endangered Species Ecology: Extinction Ecology: Nature Ecology: Research
Published

History shows that humans are good for biodiversity... sometimes      (via sciencedaily.com)     Original source 

Humans have been an important driver of vegetation change over thousands of years, and, in some places, had positive impacts on biodiversity, according to a new study.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Endangered Species Ecology: Nature
Published

Building a roadmap to bioengineer plants that produce their own nitrogen fertilizer      (via sciencedaily.com)     Original source 

Nitrogen fertilizers make it possible to feed the world's growing population, but they are also costly adn harm ecosystems. However, a few plants have evolved the ability to acquire their own nitrogen with the help of bacteria, and a new study helps explain how they did it, not once, but multiple times.

Biology: Biochemistry Biology: Botany Biology: Evolutionary Biology: General Biology: Genetics Ecology: Endangered Species Ecology: Nature Geoscience: Environmental Issues
Published

How plant cold specialists can adapt to the environment      (via sciencedaily.com)     Original source 

Evolutionary biologists studied spoonworts to determine what influence genome duplication has on the adaptive potential of plants. The results show that polyploids -- species with more than two sets of chromosomes -- can have an accumulation of structural mutations with signals for a possible local adaptation, enabling them to occupy ecological niches time and time again.

Anthropology: Cultures Anthropology: Early Humans Anthropology: General Offbeat: General Offbeat: Paleontology and Archeology
Published

'A history of contact': Geneticists are rewriting the narrative of Neanderthals and other ancient humans      (via sciencedaily.com)     Original source 

Using genomes from 2,000 living humans as well as three Neanderthals and one Denisovan, an international team mapped the gene flow between the hominin groups over the past quarter-million years.

Biology: Biochemistry Biology: Botany Biology: Microbiology Ecology: Animals Ecology: Endangered Species Ecology: Invasive Species
Published

Wild plants and crops don't make great neighbors, research finds      (via sciencedaily.com)     Original source 

Native plants and non-native crops do not fare well in proximity to one another, attracting pests that spread diseases in both directions, according to two new studies.

Anthropology: General Paleontology: Climate
Published

Unveiling 1,200 years of human occupation in Canada's Arctic      (via sciencedaily.com)     Original source 

A recent study provides new insights into ancient cultures in Canada's Arctic, focusing on Paleo-Inuit and Thule-Inuit peoples over thousands of years. Researchers detected human presence and settlements on Somerset Island, Nunavut, by analyzing sediment samples.

Anthropology: General Archaeology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

First ever 3D reconstruction of 52,000-year-old woolly mammoth chromosomes thanks to serendipitously freeze-dried skin      (via sciencedaily.com)     Original source 

An international research team has assembled the genome and 3D chromosomal structures of a 52,000-year-old woolly mammoth -- the first time such a feat has been achieved for any ancient DNA sample. The fossilized chromosomes, which are around a million times longer than most ancient DNA fragments, provide insight into how the mammoth's genome was organized within its living cells and which genes were active within the skin tissue from which the DNA was extracted. This unprecedented level of structural detail was retained because the mammoth underwent freeze-drying shortly after it died, which meant that its DNA was preserved in a glass-like state.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Endangered Species Ecology: Nature
Published

Not so simple: Mosses and ferns offer new hope for crop protection      (via sciencedaily.com)     Original source 

Mosses, liverworts, ferns and algae may offer an exciting new research frontier in the global challenge of protecting crops from the threat of disease.

Ecology: Animals Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Ecosystems Environmental: General
Published

Wolves' return has had only small impact on deer populations in NE Washington      (via sciencedaily.com)     Original source 

Wolves returned to Washington state in 2008. A new study shows that, despite their rising numbers, wolves are not having much of an impact on white-tailed deer, one of their primary prey. Scientists report that the biggest factor shaping white-tailed deer populations in northeast Washington is the quality of habitat available, which is largely determined by human activity. Cougars were second in their impact. Wolves were a distant third.