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Categories: Biology: Developmental, Offbeat: Plants and Animals

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Anthropology: General Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Marine Ecology: Sea Life Geoscience: Geography Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

Evolutionary secrets of 'Old Tom' and the killer whales of Eden revealed by genetic study      (via sciencedaily.com)     Original source 

Evolutionary biologists have for the first time decoded the genetic lineage of a famous killer whale and a pod that once worked alongside whale hunters off the coast of Australia. In the Australian tradition of claiming New Zealand's celebrities as its own, Old Tom, the leader of a pod of killer whales that famously helped whalers hunt baleen whales in the 20th century, has ancestral links to modern-day killer whales in New Zealand, according to new DNA research. Old Tom also shared a common ancestor with killer whales from Australasia, the North Pacific, and North Atlantic Oceans, but is most similar to modern New Zealand killer whales. However, most of Tom's DNA code is not found in other killer whales globally suggesting that the killer whales of Eden may have become extinct locally.

Biology: Biochemistry Biology: Evolutionary Biology: General Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Ginger pigment molecules found in fossil frogs      (via sciencedaily.com) 

Palaeontologists discover molecular evidence of phaeomelanin, the pigment that produces ginger coloration. Phaeomelanin is now toxic to animals – this discovery may be first step in understand its evolution. 

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

The end of genes: Routine test reveals unique divergence in genetic code      (via sciencedaily.com)     Original source 

Scientists testing a new method of sequencing single cells have unexpectedly changed our understanding of the rules of genetics. The genome of a protist has revealed a seemingly unique divergence in the DNA code signalling the end of a gene, suggesting the need for further research to better understand this group of diverse organisms.  

Offbeat: General Offbeat: Plants and Animals
Published

Bumblebees drop to shake off Asian hornets      (via sciencedaily.com)     Original source 

Bumblebees have a remarkably successful method for fighting off Asian hornets, new research shows.

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

New open-source method to improve decoding of single-cell data      (via sciencedaily.com)     Original source 

Researchers have developed a new open-source computational method, dubbed Spectra, which improves the analysis of single-cell transcriptomic data. By guiding data analysis in a unique way, Spectra can offer new insights into the complex interplay between cells — like the interactions between cancer cells and immune cells, which are critical to improving immunotherapy treatments.

Offbeat: Plants and Animals
Published

Hippos' prominent tusks and wide gaping mouths prevent efficient, grinding chewing      (via sciencedaily.com)     Original source 

Hippos' huge tusks and wide gape restrict grinding jaw movements, making their chewing inefficient, according to a new study.

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

Avatars to help tailor glioblastoma therapies      (via sciencedaily.com)     Original source 

Scientists have created a new zebrafish xenograft platform to screen for novel treatments for an aggressive brain tumor called glioblastoma, according to a new study.

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

Scientists develop 3D printing method that shows promise for repairing brain injuries      (via sciencedaily.com)     Original source 

Researchers have produced an engineered tissue representing a simplified cerebral cortex by 3D printing human stem cells. When implanted into mouse brain slices, the structures became integrated with the host tissue. The technique may ultimately be developed into tailored repairs to treat brain injuries.

Biology: Zoology Ecology: Animals Offbeat: General Offbeat: Plants and Animals
Published

Unique voice print in parrots      (via sciencedaily.com)     Original source 

Individual voice could help birds be recognized in a flock, no matter what they say.

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

When cells go boom: Study reveals inflammation-causing gene carried by millions      (via sciencedaily.com)     Original source 

Researchers have found that a genetic change that increases the risk of inflammation, through a process described as ‘explosive’ cell death, is carried by up to 3% of the global population.

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

How new plant cell walls change their mechanical properties after cell division      (via sciencedaily.com)     Original source 

Scientists reveal new plant cell walls can have significantly different mechanical properties compared to surrounding parental cell walls, enabling cells to change their local shape and influence the growth of plant organs.

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

Preventing spread of parasitic DNA in our genomes      (via sciencedaily.com)     Original source 

Researchers have identified a new enzyme called PUCH, which plays a key role in preventing the spread of parasitic DNA in our genomes. These findings may reveal new insights into how our bodies detect and fight bacteria and viruses to prevent infections.

Ecology: Extinction Ecology: General Ecology: Research Environmental: Ecosystems Offbeat: Earth and Climate Offbeat: Plants and Animals
Published

Study on mysterious Amazon porcupine can help its protection      (via sciencedaily.com)     Original source 

A recent study sheds new light on the elusive Roosmalens' dwarf porcupine, a poorly understood neotropical species. After 22 years of relative obscurity, this research uncovers vital information about its distribution, phylogenetics, and potential conservation threats, not only revealing its endemic presence in the Madeira biogeographical province but also expanding its known range in the southern Amazon.

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

A hygiene program for chromosomes      (via sciencedaily.com)     Original source 

Researchers identified and characterized a new cellular compartment in vertebrate cells that might be a precursor of today's eucaryotic nucleus. The study reveals that mammalian cells recognize, cluster, sort and keep extrachromosomal DNA -- like transfected plasmid DNA and endogenous circular DNAs originating from telomeres of the chromosome -- away from chromosomal DNA. That suggests that there is a cell autonomous genome defense system.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: General
Published

A more effective experimental design for engineering a cell into a new state      (via sciencedaily.com)     Original source 

A new machine-learning approach helps scientists more efficiently identify the optimal intervention to achieve a certain outcome in a complex system, such as genome regulation, requiring far fewer experimental trials than other methods. 

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

Researchers studied thousands of fertility attempts hoping to improve IVF      (via sciencedaily.com)     Original source 

By genetically testing nearly one thousand embryos, scientists have provided the most detailed analysis of embryo fate following human in vitro fertilization.

Biology: Biochemistry Biology: Microbiology Offbeat: General Offbeat: Plants and Animals
Published

Skin behind the ears and between the toes can host a collection of unhealthy microbes      (via sciencedaily.com)     Original source 

Scrubbing behind the ears and between the toes may help keep the skin in those regions healthy, new research suggests. The microbiome, or the collection of microbes living on and in the human body, are known to play a role in human health and the skin is no different. A new study has shown that the composition of the skin microbiome varies across dry, moist and oily regions of the skin.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Offbeat: General Offbeat: Plants and Animals
Published

Solving a sticky, life-threatening problem      (via sciencedaily.com)     Original source 

Researchers have zeroed in on C. auris' uncanny ability to stick to everything from skin to catheters and made a startling discovery: it uses a protein similar to that used by barnacles and mollusks.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Marine Biology: Microbiology Ecology: Sea Life
Published

Did animal evolution begin with a predatory lifestyle?      (via sciencedaily.com)     Original source 

Surprising findings on the development of sea anemones suggest that a predatory lifestyle molded their evolution and had a significant impact on the origin of their nervous system. The researchers were able to show that the young life stages (larvae) of the small sea anemone Aiptasia actively feed on living prey and are not dependent on algae. To capture its prey, the anemone larvae use specialized stinging cells and a simple neuronal network.