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Categories: Biology: Developmental, Paleontology: Climate
Published Record low sea ice cover in the Antarctic



There is currently less sea ice in the Antarctic than at any time in the forty years since the beginning of satellite observation: in early February 2023, only 2.20 million square kilometers of the Southern Ocean were covered with sea ice.
Published Changing climate conditions likely facilitated early human migration to the Americas at key intervals, research suggests



Researchers have pinpointed two intervals when ice and ocean conditions would have been favorable to support early human migration from Asia to North America late in the last ice age, a new paper shows.
Published Study reveals new clues about how 'Earth's thermostat' controls climate


Rocks, rain and carbon dioxide help control Earth's climate over thousands of years -- like a thermostat -- through a process called weathering. A new study may improve our understanding of how this thermostat responds as temperatures change.
Published Human brain organoids respond to visual stimuli when transplanted into adult rats


Researchers show that brain organoids -- clumps of lab-grown neurons -- can integrate with rat brains and respond to visual stimulation like flashing lights.
Published Monitoring an 'anti-greenhouse' gas: Dimethyl sulfide in Arctic air


Data stored in ice cores dating back 55 years bring new insight into atmospheric levels of a molecule that can significantly affect weather and climate.
Published This groundbreaking biomaterial heals tissues from the inside out


A new biomaterial that can be injected intravenously, reduces inflammation in tissue and promotes cell and tissue repair. The biomaterial was tested and proven effective in treating tissue damage caused by heart attacks in both rodent and large animal models. Researchers also provided proof of concept in a rodent model that the biomaterial could be beneficial to patients with traumatic brain injury and pulmonary arterial hypertension.
Published New species of microalgae discovered


A new species of microalgae was found in water from a home aquarium. While analyzing DNA samples taken from the algae, researchers discovered Medakamo hakoo, whose DNA sequence didn't match any on record. This new species is the smallest known freshwater green algae, with inherent qualities which enable it to be cultured stably at high density, meaning it could be effectively used to produce useful products for food and industry.
Published Mercury helps to detail Earth's most massive extinction event


Scientists are working to understand the cause and how the events of the LPME unfolded by focusing on mercury from Siberian volcanoes that ended up in sediments in Australia and South Africa.
Published AI technology generates original proteins from scratch


Scientists have created an AI system capable of generating artificial enzymes from scratch. In laboratory tests, some of these enzymes worked as well as those found in nature, even when their artificially generated amino acid sequences diverged significantly from any known natural protein.
Published Artificial human skin paves the way to new skin cancer therapy


In a new study, researchers have managed to curb skin cancer. The study was conducted on artificial human skin.
Published Kill dates for re-exposed black mosses


Scientists have used radiocarbon ages (kill dates) of previously ice-entombed dead black mosses to reveal that glaciers advanced during three distinct phases in the northern Antarctic Peninsula over the past 1,500 years.
Published Pioneering approach advances study of CTCF protein in transcription biology


Scientists used the auxin-inducible degron 2 system on CTCF, bringing the novel approach to bear on a fundamental protein.
Published Scientists discover the evolutionary secret behind different animal life cycles


Researchers uncover for the first time the mechanism that likely explains how embryos form either a larva or a miniature version of the adult.
Published What crocodile DNA reveals about the Ice Age


What drives crocodile evolution? Is climate a major factor or changes in sea levels? Determined to find answers to these questions, researchers discovered that while changing temperatures and rainfall had little impact on the crocodiles' gene flow over the past three million years, changes to sea levels during the Ice Age had a different effect.
Published Actin affects the spread of cancer in several ways


The transport of molecules along the cell's skeleton plays a role in cancer metastasis, researchers show.
Published How cells prevent harmful extra DNA copies


A protein that prepares DNA for replication also prevents the replication process from running out of control, according to a new study. The work solves a mystery that has long puzzled biologists.
Published Botany: Chloroplast from the father


Under cold conditions, not only the mother plant but also the father plant can pass on its chloroplasts to the offspring.
Published Genome editing procedures optimized


Scientists succeed in boosting the efficiency of CRISPR/Cas9 and related methods and modifying initially inaccessible DNA sequences. They fine-tuned these tools to enable effective genetic screening for modelling specific gene mutations.
Published New genetic disorder that causes susceptibility to opportunistic infections


Immunogeneticists have discovered a new genetic disorder that causes immunodeficiency and profound susceptibility to opportunistic infections including a life-threatening fungal pneumonia.
Published DNA from domesticated chickens is tainting genomes of wild red junglefowl, study finds


The red junglefowl -- the wild ancestor of the chicken -- is losing its genetic diversity by interbreeding with domesticated birds, according to a new study.