Singapore Science News API

{
    "totalArticles": 17104,
    "articles": [
        {
            "id": "6f94aedef9b5fab7bc0c73cc3ff6ce24",
            "title": "Newly identified fossil sheds light on evolutionary history of saber-toothed cats",
            "description": "Fossils tucked away in a museum drawer and identified merely as \"feline\" are actually from a very ancient and enigmatic saber-toothed cat that inhabited North America more than 5 million years ago. Newly identified by a UC Berkeley paleontologist, the nearly complete skull helps clarify how these large-fanged felines evolved over millennia before going extinct about 10,000 years ago.",
            "content": "Fossils tucked away in a museum drawer and identified merely as \"feline\" are actually from a very ancient and enigmatic saber-toothed cat that inhabited North America more than 5 million years ago. Newly identified by a UC Berkeley paleontologist, th... [7536 chars]",
            "url": "https://phys.org/news/2026-06-newly-fossil-evolutionary-history-saber.html",
            "image": "https://scx2.b-cdn.net/gfx/news/2026/newly-identified-fossi-1.jpg",
            "publishedAt": "2026-06-27T18:00:01Z",
            "lang": "en",
            "source": {
                "id": "6063be7565dcd637bb5d2946ed6c5329",
                "name": "Phys.org",
                "url": "https://phys.org"
            }
        },
        {
            "id": "ccc71cbd9713e7c4d16d5863468c76ca",
            "title": "Dominance, drivers and thresholds of DEN, ANA, and DNRA quantified using a global dataset of cross-ecosystems and machine-learning",
            "description": "Nitrogen retention and loss in the critical zone are regulated by denitrification (DEN), anaerobic ammonium oxidation (ANA) and dissimilatory nitrate reduction to ammonium (DNRA), yet their global partitioning remains uncertain. A global dataset from 72 studies reporting DEN, ANA and DNRA rates plus environmental variables and functional genes was analyzed using random forests, generalized additive models and mixed-effects gene–rate analyses. Across ecosystems, contributions followed DEN (66.3%) > DNRA (21.9%) > ANA (11.8%). Wetlands showed consistently elevated DEN rates (mean 11.35 nmol N g⁻¹ h⁻¹) and the strongest ANA activity (mean 1.39 nmol N g⁻¹ h⁻¹), supporting moisture-rich systems as hotspots for DEN and ANA whereas highlands showed the highest relative DNRA (37.8% contribution; 6.89 nmol N g⁻¹ h⁻¹). Seven principal components explained 63.4% of the variance, highlighting critical zone organic matter pools, anaerobic metabolic intensity, and critical zone moisture and nutrient availability as the main environmental controls. Random forest models indicated that NO₃⁻ is the primary predictor for DEN and ANA (together with moisture and temperature/carbon supply), while DNRA is driven more strongly by NH₄⁺ (together with precipitation and temperature). DEN and ANA initially related to moisture negatively then positively at inflection points of about 15%. All processes were associated with hzsB, but correlations were weaker for DNRA. Together, these findings fill a key gap by providing a global, cross-ecosystem synthesis that jointly quantifies the rates, drivers, thresholds, and functional gene–rate associations of DEN, ANA, and DNRA.",
            "content": "Nitrogen retention and loss in the critical zone are regulated by denitrification (DEN), anaerobic ammonium oxidation (ANA) and dissimilatory nitrate reduction to ammonium (DNRA), yet their global partitioning remains uncertain. A global dataset from... [2316 chars]",
            "url": "https://www.nature.com/articles/s41598-026-59231-1?error=cookies_not_supported&code=2f51a067-257e-4905-8725-a77e537c5670",
            "image": "https://www.nature.com/static/images/favicons/nature/favicon-48x48-b52890008c.png",
            "publishedAt": "2026-06-27T11:24:13Z",
            "lang": "en",
            "source": {
                "id": "7abf0df285fbe93cdccffcc7c4088737",
                "name": "Nature",
                "url": "https://www.nature.com"
            }
        },
        {
            "id": "01d5752fdc217ff563f0ff25477d1c52",
            "title": "A large, harmless asteroid will zip past Earth this weekend",
            "description": "NEW YORK - A large asteroid will zip past Earth this weekend, but don't worry: It poses no danger.The space rock - 1997 NC1 - makes its closest approach Saturday morning (June 27), coming within 1.6 million miles (2.6 million kilometers), according to the European Space Agency.Discovered nearly three decades ago by an asteroid-tracking system in Hawaii, the asteroid is...",
            "content": "NEW YORK - A large asteroid will zip past Earth this weekend, but don't worry: It poses no danger.\nThe space rock - 1997 NC1 - makes its closest approach Saturday morning (June 27), coming within 1.6 million miles (2.6 million kilometers), according ... [922 chars]",
            "url": "https://www.asiaone.com/world/large-harmless-asteroid-will-zip-past-earth-weekend",
            "image": "https://media.asiaone.com/sites/default/files/styles/article_top_image/public/original_images/Jun2026/20260627_space-asteroid.jpg?itok=nxOVB2b7",
            "publishedAt": "2026-06-27T07:24:00Z",
            "lang": "en",
            "source": {
                "id": "fc22c9ffdaef43b7870c03b37c3a22ee",
                "name": "AsiaOne",
                "url": "https://www.asiaone.com"
            }
        }
    ]
}