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Categories: Biology: Developmental, Ecology: Extinction

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

Genetic atlas detailing early stages of zebrafish development      (via sciencedaily.com)     Original source 

Researchers have published an atlas of zebrafish development, detailing the gene expression programs that are activated within nearly every cell type during the first five days of development, a period in which embryos mature from a single cell into distinct cell types.

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

How the immune system fights to keep herpes at bay      (via sciencedaily.com)     Original source 

In a study of lab-engineered cells, researchers identify how the immune system neutralizes the herpesvirus. The research maps, for the first time, the maneuvers used by virus and host in the cell nucleus, a poorly understood terrain of host-pathogen interaction. The findings could inform the design of new treatments for herpes and other viruses that replicate in the same way.  

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

Scientists unveil complete cell map of a whole mammalian brain      (via sciencedaily.com)     Original source 

Researchers have created a complete cell atlas of a whole mammalian brain. This atlas serves as a map for the mouse brain, describing the type, location, and molecular information of more than 32 million cells and providing information on connectivity between these cells.

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

Cells move in groups differently than they do when alone      (via sciencedaily.com)     Original source 

A protein that helps generate the force needed for single cells to move works differently in cells moving in groups, a new study shows.

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

Mice possess natural gene therapy system      (via sciencedaily.com)     Original source 

A previously mysterious small RNA molecule in mice is found to play a crucial role in gene expression, and may be the first identified member of a new class of regulatory RNAs.

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

A rare enzyme role change with bacterial defense system assembly      (via sciencedaily.com)     Original source 

Scientists have revealed a never-before-seen phenomenon in a protein: Alone, the enzyme processes DNA and RNA but, when bound to another protein as part of a defense system, interacts with a completely different type of compound to help bacteria commit suicide.

Biology: Biochemistry Biology: General Ecology: Animals Ecology: Endangered Species Ecology: Extinction Environmental: Ecosystems Geoscience: Environmental Issues Paleontology: Climate Paleontology: Fossils Paleontology: General
Published

Best areas for rewilding European bison      (via sciencedaily.com)     Original source 

Simulations integrate historical records, fossils, and ancient DNA to reveal why the European bison nearly went extinct, and pinpoint optimal areas for conservation.   Since the near-extinction of the European bison, enormous conservation efforts have helped to restore wild populations, and its numbers are on the rise. However, the study authors argue that ensuring the species's long-term protection and recovery requires understanding why they nearly went extinct in the first place.    'Our study also suggests areas where rewilding attempts are most likely to be successful,' said lead author July Pilowsky, currently a disease ecologist at Cary Institute of Ecosystem Studies. Pilowsky completed the research while working on their PhD at University of Adelaide and University of Copenhagen.   

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
Published

This Japanese 'dragon' terrorized ancient seas      (via sciencedaily.com)     Original source 

Researchers have described a Japanese mosasaur the size of a great white shark that terrorized Pacific seas 72 million years ago. The mosasaur was named for the place where it was found, Wakayama Prefecture. Researchers call it the Wakayama Soryu, which means blue dragon.

Biology: Microbiology Biology: Zoology Ecology: Extinction Ecology: Nature Ecology: Trees
Published

Nature and animal emojis don't accurately represent natural biodiversity      (via sciencedaily.com)     Original source 

The current emoji library doesn't accurately represent the 'tree of life' and the breadth of biodiversity seen in nature according to a new analysis. A team of conservation biologists categorized emojis related to nature and animals and mapped them onto the phylogenetic tree of life. They found that animals are well represented by the current emoji catalog, whereas plants, fungi, and microorganisms are poorly represented. Within the animal kingdom, vertebrates were over-represented while arthropods were underrepresented with respect to their actual biodiversity.

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

New genes can arise from nothing      (via sciencedaily.com)     Original source 

The complexity of living organisms is encoded within their genes, but where do these genes come from? Researchers resolved outstanding questions regarding the origin of small regulatory genes, and described a mechanism that creates their DNA palindromes. Under suitable circumstances, these palindromes evolve into microRNA genes.

Biology: Biochemistry Biology: General Biology: Marine Ecology: Extinction Ecology: Nature Ecology: Sea Life Paleontology: General
Published

Study reshapes understanding of mass extinction in Late Devonian era      (via sciencedaily.com)     Original source 

A recently published study puts forth a new theory that volcanic eruptions combined with widespread ocean detoxification pushed Earth's biology to a tipping point in the Late Devonian era, triggering a mass extinction.

Biology: General Biology: Marine Biology: Zoology Ecology: Extinction Ecology: Sea Life Environmental: Ecosystems Geoscience: Environmental Issues
Published

First global estimate of marine aquarium trade to encourage sustainable practices      (via sciencedaily.com)     Original source 

New research estimates 55 million marine organisms worth $2.15bn are sold in the marine aquarium trade each year, making it as valuable as global fisheries such as tuna.

Biology: Biochemistry Biology: General Biology: Marine Biology: Zoology Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Environmental: General
Published

Feathered friends can become unlikely helpers for tropical coral reefs facing climate change threat      (via sciencedaily.com)     Original source 

Tropical coral reefs are among our most spectacular ecosystems, yet a rapidly warming planet threatens the future survival of many reefs. However, there may be hope for some tropical reefs in the form of feathered friends. A new study has found that the presence of seabirds on islands adjacent to tropical coral reefs can boost coral growth rates on those reefs by more than double.

Ecology: Extinction Ecology: Nature Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Climate Paleontology: Dinosaurs Paleontology: General
Published

More than a meteorite: New clues about the demise of dinosaurs      (via sciencedaily.com)     Original source 

What wiped out the dinosaurs? A meteorite plummeting to Earth is only part of the story, a new study suggests. Climate change triggered by massive volcanic eruptions may have ultimately set the stage for the dinosaur extinction, challenging the traditional narrative that a meteorite alone delivered the final blow to the ancient giants.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Marine Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Sea Life Ecology: Trees Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Climate Paleontology: Fossils Paleontology: General
Published

Crocodile family tree mapped: New light shed on croc evolution      (via sciencedaily.com)     Original source 

Around 250 million years ago, 700 species of reptiles closely related to the modern-day crocodile roamed the earth, now new research reveals how a complex interplay between climate change, species competition and habitat can help explain why just 23 species of crocodile survive today.