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Land bridges linking ancient India and Eurasia were ‘freeways’ for biodiversity exchange

Land bridges linking ancient India and Eurasia were ‘freeways’ for biodiversity exchange

Hypothesized position of the Indian subcontinent and an early Eocene land bridge allowing for the first inferred dispersal event from Eurasia into India, 50-55 million years ago, and position of the ISC and a middle-late Eocene land bridge allowing for the second first inferred dispersal event from Eurasia into India between 35-50 MYA. Credit: University […]

Fairy circles found in Australian outback

Fairy circles found in Australian outback

A fairy circle in the Western Australian outback. Credit: Stephan Getzin. (Phys.org)—A small team of researchers from Germany, Israel and Australia has confirmed that fairy circles exist in a part of the Australian outback. In their paper published in Proceedings of the National Academy of Sciences, the researchers describe not only evidence for fairy circles […]

Illegal tuna fishing costs Pacific US$740m: report

Illegal tuna fishing costs Pacific US$740m: report

Illegal tuna fishing in the Pacific has reached a «staggering» value of up to 740 USD million a year Illegal tuna fishing in the Pacific has reached a «staggering» value of up to US$740 million a year, a study released Tuesday found. The Pacific supplies about 60 percent of the world’s tuna, an economic mainstay […]

Damage-signalling protein shows parallels between plant and human immune systems

Damage-signalling protein shows parallels between plant and human immune systems

BTI researchers used Arabidopsis plants (left) and gray mold (grown in a petri dish on the right) to investigate the damage-signalling function of HMGB3. Credit: Photo by Patricia Waldron A protein that signals tissue damage to the human immune system has a counterpart that plays a similar role in plants, report researchers at the Boyce […]

Embryo development: Some cells are more equal than others even at four-cell stage

Embryo development: Some cells are more equal than others even at four-cell stage

A four-cell stage embryo. Credit: Zernicka-Goetz Lab, University of Cambridge Genetic ‘signatures’ of early-stage embryos confirm that our development begins to take shape as early as the second day after conception, when we are a mere four cells in size, according to new research led by the University of Cambridge and EMBL-EBI. Although they seem […]

You can thank diverse yeasts for that coffee and chocolate

You can thank diverse yeasts for that coffee and chocolate

Credit: George Hodan/public domain Humans have put yeast to work for thousands of years to make bread, beer, and wine. Wild strains of yeast are also found in the natural fermentations that are essential for chocolate and coffee production. But, as new genetic evidence reported in the Cell Press journal Current Biology on March 24 […]

Pigeon foot feather genes identified: Study hints how scaly dinosaur legs could get birdlike feathers

Pigeon foot feather genes identified: Study hints how scaly dinosaur legs could get birdlike feathers

An English trumpeter breed of domestic pigeon with very large foot feathers, known as muffs. Credit: Sydney Stringham, University of Utah University of Utah scientists identified two genes that make some pigeon breeds develop feathered feet known as muffs, while others have scaled feet. The same or similar genes might explain scaled feet in chickens […]

Boat mooring chains scour Rottnest (Australia) seagrass releasing CO2

Boat mooring chains scour Rottnest (Australia) seagrass releasing CO2

This photography shows the loss of seagrass in bays around Rottnest Island off the coast of Perth. Credit: ECU Seagrass covering 48,000sqm has been scoured from the sands of Rottnest Island (Western Australia’) by almost 900 mooring chains used by recreational boats according to research from Edith Cowan University and Universitat Autnoma de Barcelona. The […]

Team documents some of the first steps in the process by which a stem cell transforms into different cell types

Team documents some of the first steps in the process by which a stem cell transforms into different cell types

Primary cilia, depicted here as antennae, read the directional signals along the stem cell highway and determine whether human embryonic stem cells become precursors to neurons. Credit: Peter Allen How do neurons become neurons? They all begin as stem cells, undifferentiated and with the potential to become any cell in the body. Until now, however, […]

Incredible images reveal bacteria motor parts in unprecedented detail

Incredible images reveal bacteria motor parts in unprecedented detail

Three bacterial motors with differences torques. Units are piconewton nanometres (pN nm). Credit: Morgan Beeby/Imperial College London Nanoscopic 3D imaging has revealed how different bacteria have geared their tiny propeller motors for a wide range of swimming abilities. Many bacteria swim using flagella – long tails that are attached to tiny motors made of proteins, […]

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