Science

Study Sheds Some New Light on Evolution of Bird Beaks

The observation that Galapagos finches possessed different beak shapes to obtain different foods was central to the theory of evolution by natural selection, and it has been assumed that this relationship holds true across all bird species. However, a University of Bristol-led study suggests bird beaks are not as adapted …

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Early Triassic Marine Reptile Had Platypus-Like Bill

Eretmorhipis carrolldongi, a 28-inch (70 cm) long marine reptile that lived about 250 million years ago (early Triassic epoch) in what is now China, likely used its platypus-like bill to hunt by touch. Eretmorhipis carrolldongi had a long rigid body, a small head, tiny eyes and four flippers for swimming …

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Record-Breaking Salamander Found in Tennessee

A team of scientists has discovered the largest individual of any cave salamander in North America — a 9.4-inch (23.8 cm) long specimen of the Berry Cave salamander (Gyrinophilus gulolineatus). The largest specimen of the Berry Cave salamander (Gyrinophilus gulolineatus) measures 9.4 inches. Image credit: Nicholas Gladstone / University of …

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Oral Pathogenic Bacterium May Drive Alzheimer’s Disease Pathology

An international team of researchers from the United States, Australia, Poland, Norway, and New Zealand, has found higher levels of Porphyromonas gingivalis, a bacterium associated with chronic gum disease (periodontitis), and toxic enzymes from the bacterium called gingipains in the brains of patients with Alzheimer’s disease. The team has also …

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