Evolution

Did Crocodiles Evolve Backwards From Warm-Blooded Ancestors?

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Modern-day crocodiles and birds share a common archosaur ancestor that survived the Permian-Triassic extinction event roughly 250 million years ago, according to paleontologists. New research reveals that unlike long-held scientific assumptions that warm-bloodedness only evolved once toward avian lineages, ancient crocodile forebears also possessed a warm-blooded physiology until the Chicxulub asteroid impact roughly 66 million … Read more

H5N1 Bird Flu Infections Remain Rare Among Exposed Workers

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Human infections with highly pathogenic avian influenza A(H5N1) remain rare and mild among exposed poultry workers, according to a cohort study published in the journal Eurosurveillance. Researchers investigating outbreak sites in England between April 2023 and March 2025 found that fewer than 1% of monitored individuals met criteria for infection, even as rising animal spillover … Read more

How Life Evolved on Earth Revealed in Ancient Poop Study

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Fossilized feces unearthed across 35 global sites reveal that a prehistoric “fecal revolution” over half a billion years ago may have driven the Cambrian Explosion, according to an excremental study published in the journal Trends in Ecology and Evolution. Researchers found that the transformation in ancient animal waste coincided with the rise of complex marine … Read more

Neural Stem Cells: Early Split Into Distinct Neuron Lineages

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Neural stem cells in the cerebral cortex split into two independent lineages early in development to produce different types of neurons, according to a study by Irene Varela-Martínez published in Science Advances. This finding, led by the postdoctoral researcher at the Institute of Science and Technology Austria (ISTA), challenges the long-held “inside-out” model of brain … Read more

AI-Powered Target Discovery for Rare Sinonasal Cancer by Insilico Medicine

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Insilico Medicine published a collaborative study in the journal npj Precision Oncology, detailing how artificial intelligence and multi-omic analysis identified therapeutic targets in inverted papilloma-associated sinonasal squamous cell carcinoma (IP-SNSCC), a rare head and neck cancer. Conducted with researchers from the University of Chicago and Johns Hopkins University, the peer-reviewed paper offers the first comprehensive … Read more

Ancient Evolution Linked to Severe COVID-19 Risk

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According to a study published in BMC Biology, researchers at the USC Dornsife College of Letters, Arts and Sciences and Howard University have discovered that modern human immune responses bear genetic marks of ancient battles with infectious diseases, while also identifying rare variants linked to severe COVID-19. The findings bridge human evolution and infectious disease. … Read more

How Cells Share Activation Switches While Evolving Unique Gene-Silencing Strategies

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Cellular instructions for activating genes have remained nearly unchanged across two billion years of evolution, while the mechanisms used to switch genes off vary widely across branches of life, according to a study published in Nature Genetics by the Centre for Genomic Regulation (CRG) in Barcelona. Researchers used a new profiling method called iChIP2 to … Read more

Human DNA Reveals Traces of Two Unknown Archaic Hominins

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According to new research published July 30, 2026, in the journal Science, modern human genomes contain genetic traces from two previously unknown archaic hominin lineages: a “ghost” lineage in Africa that mixed with Homo sapiens more than 50,000 years ago, and a “super-archaic” lineage dating back over 1.7 million years that left its footprint via … Read more

Cooperative Sperm Boosts Arthropod Fertilization Success

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Recent research reveals that arthropod fertilization often relies on sperm cooperation rather than individual competition, reshaping evolutionary biology understandings of reproduction. According to a study published in Nature Communications by evolutionary biologists from Syracuse University, the University of Siena, and the University of Szeged, sperm cells in numerous species form coordinated groups using sperm-associated material … Read more

Origin of Human Eyes Traced to 560-Million-Year-Old Cyclops Fossil

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According to a review published in Current Biology by researchers from Lund University and the University of Sussex, vertebrates passed through a cyclops-like stage roughly 560 million years ago, possessing a light-sensitive organ on top of the head that ultimately evolved into our two image-forming eyes. This evolutionary hypothesis suggests that the modern pineal gland—often … Read more

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