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Categories: Biology: Developmental, Ecology: Endangered Species

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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.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Ecology: Invasive Species
Published

Decoding the Easter Bunny -- an eastern Finnish brown hare to represent the standard for the species' genome      (via sciencedaily.com)     Original source 

Biologists have published a chromosomally assembled reference genome for the European brown hare. The genome consists of 2.9 billion base pairs, which form 23 autosomal chromosomes, and X and Y sex chromosomes. The timing of the genome release is very appropriate as the brown hare also represents the original Easter Bunny familiar from European folklore.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Animals Geoscience: Geochemistry
Published

Genes identified that allow bacteria to thrive despite toxic heavy metal in soil      (via sciencedaily.com)     Original source 

Some soil bacteria can acquire sets of genes that enable them to pump the heavy metal nickel out of their systems, a study has found. This enables the bacteria to not only thrive in otherwise toxic soils but help plants grow there as well. A research team pinpointed a set of genes in wild soil bacteria that allows them to do this in serpentine soils which have naturally high concentrations of toxic nickel. The genetic discovery could help inform future bioremediation efforts that seek to return plants to polluted soils.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Molecular
Published

How cells are ahead of the curve      (via sciencedaily.com)     Original source 

The curvature of a surface determines the migration behavior of biological cells. They preferentially move along valleys or grooves while avoiding ridges. These findings gave rise to a model predicting cellular behavior. Such universal principles now allow a better understanding of the migration of immune and cancer cells, paving the way for new treatment options.

Biology: Botany Biology: Microbiology Ecology: Endangered Species
Published

Cacao plants' defense against toxic cadmium unveiled      (via sciencedaily.com)     Original source 

Researchers used bright X-rays to unveil how cacao trees protect themselves from toxic metal cadmium.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Molecular
Published

Machine learning classifier accelerates the development of cellular immunotherapies      (via sciencedaily.com)     Original source 

Making a personalized T cell therapy for cancer patients currently takes at least six months. Scientists have shown that the laborious first step of identifying tumor-reactive T cell receptors for patients can be replaced with a machine learning classifier that halves this time.

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: Biochemistry Biology: Biotechnology Biology: Developmental Biology: Evolutionary Biology: General Biology: Microbiology
Published

New study on mating behaviors offers clues into the evolution of attraction      (via sciencedaily.com)     Original source 

In examining the mating rituals of roundworms, researchers uncovered a unique approach to reproduction that maximizes genetic fitness.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Genetics Biology: Molecular
Published

New discovery reveals how the egg controls sperm entry      (via sciencedaily.com)     Original source 

After the egg has been fertilized by a sperm, the surrounding egg coat tightens, mechanically preventing the entry of additional sperm and the ensuing death of the embryo, a new study finds. The work also explains how mutations in egg coat proteins can cause female infertility and may eventually lead to new contraceptive methods.

Biology: General Ecology: Endangered Species Ecology: Extinction Ecology: Sea Life
Published

Rope entanglement cause of low breeding rates in right whales, analysis finds      (via sciencedaily.com)     Original source 

New findings show the severe impact of fishing gear entanglements on the survival of critically endangered North Atlantic right whales, with every injury from entanglements impacting population recovery.

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

Simple trick could improve accuracy of plant genetics research      (via sciencedaily.com)     Original source 

Researchers have published a simple trick that improves the accuracy of techniques that help us understand how external variables -- such as temperature -- affect gene activity in plants.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Offbeat: General Offbeat: Plants and Animals
Published

Milk to the rescue for diabetics? Cow produces human insulin in milk      (via sciencedaily.com)     Original source 

An unassuming brown bovine from the south of Brazil has made history as the first transgenic cow capable of producing human insulin in her milk. The advancement could herald a new era in insulin production, one day eliminating drug scarcity and high costs for people living with diabetes.

Biology: Biochemistry Biology: Botany Biology: General Ecology: Endangered Species Space: Exploration Space: General
Published

Study brings scientists a step closer to successfully growing plants in space      (via sciencedaily.com)     Original source 

New, highly stretchable sensors can monitor and transmit plant growth information without human intervention. The polymer sensors are resilient to humidity and temperature, can stretch over 400% while remaining attached to a plant as it grows and send a wireless signal to a remote monitoring location, said a chemical and biomolecular engineering professor.

Biology: Biochemistry Biology: Botany Ecology: Endangered Species Ecology: Invasive Species Ecology: Nature Environmental: Biodiversity Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Geography
Published

Exploring arctic plants and lichens: An important conservation baseline for Nunavut's newest and largest territorial park      (via sciencedaily.com)     Original source 

A comprehensive study of the floristic diversity of Agguttinni Territorial Park, Nunavut's newest and largest Territorial Park, has documented 141 vascular plant, 69 bryophyte, and 93 lichen species from this unique protected area on northern Baffin Island. Through a combination of extensive fieldwork in 2021 and examination of hundreds of existing herbarium specimens, the authors have documented species newly reported for Baffin Island and have crafted a biodiversity baseline important for park management and conservation.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

How a natural compound from sea squirts combats cancer      (via sciencedaily.com)     Original source 

Trabectedin, a promising drug derived from the sea squirt Ecteinascidia turbinata, has shown potential in combating cancers resistant to conventional treatments. However, its precise mechanism of action has remained elusive -- until now.

Biology: General Ecology: Endangered Species Ecology: Nature
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Range-shifting fishes are climate-change losers, according to new research      (via sciencedaily.com)     Original source 

Fish populations that experience rapid-range shift decline noticeably, up to 50 per cent over a decade. The populations affected most are those living on the northern poleward edges of their species' range. Researchers combined data from two large databases to examine the population numbers of range-shifting species. Their analysis revealed that extremely fast poleward shifting species, defined as upward of 17 kilometers per year, show marked declines in population, compared to negligible increases in populations that did not shift.

Biology: Biochemistry Biology: General Ecology: Endangered Species Ecology: Extinction Ecology: Nature Environmental: Biodiversity Geoscience: Geography
Published

Pronghorn population declining due to human development      (via sciencedaily.com)     Original source 

A new article looked at 40 years of data collected on 40 pronghorn herds residing in the Wyoming Basin Shrub Steppe. Overall, 80% of the herds saw a decrease in productivity, and nearly 43% saw a significant decrease. After looking at a number of variables that could potentially contribute to the decline, the researchers identified the two most strongly associated: development of oil and gas resources and woody encroachment.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Researchers uncover protein responsible for cold sensation      (via sciencedaily.com)     Original source 

Researchers have identified the protein that enables mammals to sense cold, filling a long-standing knowledge gap in the field of sensory biology.