https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. What's the value of one animal? When a wild animal is found badly injured, the most humane option is often euthanasia to prevent further suffering. That's what usually happens, and often for good reason. Even when the resources to rescue one animal are available, a rehabilitated animal brought back into the wild might be rejected by its group, or struggle to find food or escape predators. If it does survive, it may fail to reproduce, and leave no lasting mark on the population. https://phys.org/news/2025-12-africa-rarest-carnivore-story-ethiopian.html Plants & Animals Wed, 24 Dec 2025 09:02:13 EST news685789321 In a study published in the International Journal of Paleopathology, Dr. Victoria Romano and her colleagues analyzed the bones of 189 hunter-gatherers who lived during the Late Holocene (~4000 to 250 BP) in Patagonia. https://phys.org/news/2025-10-ancient-patagonian-hunter-disabled.html Archaeology Tue, 07 Oct 2025 07:30:01 EDT news678963258 The transition from the fifth to the fourth century BCE (Before the Common Era) seems to have been a critical period for the Central Andes, a region now part of Peru. Researchers have found evidence of turbulence during the passage from the Middle Formative period (1200–400 BCE) to the Late Formative period (400–1 BCE). Political disintegration and intergroup violence were apparently part of the context, possibly associated with a shift from theocracy to secular government. https://phys.org/news/2024-03-reveals-evidence-violence-crisis-ancient.html Archaeology Thu, 28 Mar 2024 15:03:04 EDT news630856981 Violence and warfare were widespread in many Neolithic communities across Northwest Europe, a period associated with the adoption of farming, new research suggests. https://phys.org/news/2023-01-violence-widespread-early-farming-society.html Archaeology Thu, 19 Jan 2023 12:44:49 EST news593354686 A team of biomaterials scientists and dentists at the UCLA School of Dentistry has developed a nanoparticle that, based on initial experiments in animals, could improve treatment for bone defects. https://phys.org/news/2020-04-scientists-nanoparticle-treatment-bone-defects.html Bio & Medicine Wed, 22 Apr 2020 14:00:05 EDT news506765430 Bioscientists are moving closer to 3-D-printed artificial tissues to help heal bone and cartilage typically damaged in sports-related injuries to knees, ankles and elbows. https://phys.org/news/2019-03-d-tissues-athletes-action.html Materials Science Thu, 28 Mar 2019 17:22:30 EDT news473012534 Few organs in the body are as complicated as the human brain, a tight spiderweb of neurons that shoots electrical signals across synapses to control all our thoughts and movements. When something goes wrong—as it does when a person suffers a traumatic brain injury—the effects can be devastating. But for decades, scientists have been stymied in trying to study the living brain in the laboratory. https://phys.org/news/2015-04-silk-cultivate-tissues-lab.html Materials Science Thu, 02 Apr 2015 09:46:16 EDT news347186764 Injuries, birth defects (such as cleft palates) or surgery to remove a tumor can create gaps in bone that are too large to heal naturally. And when they occur in the head, face or jaw, these bone defects can dramatically alter a person's appearance. Researchers will report today that they have developed a "self-fitting" material that expands with warm salt water to precisely fill bone defects, and also acts as a scaffold for new bone growth. https://phys.org/news/2014-08-shape-shifting-material-reconstruct.html Polymers Wed, 13 Aug 2014 07:00:36 EDT news327132017 To become better healers, tissue engineering need a timely and reliable way to obtain enough raw materials: cells that either already are or can become the tissue they need to build. In a new study, Brown University biomedical engineers show that the stiffness, viscosity, and other mechanical properties of adult stem cells derived from fat, such as liposuction waste, can predict whether they will turn into bone, cartilage, or fat. https://phys.org/news/2012-05-mechanical-properties-stem-cells.html Cell & Microbiology Mon, 21 May 2012 15:01:24 EDT news256815007 Researchers are reporting this week new study results they say provide further evidence of the therapeutic potential of stem cells derived from bone marrow for patients suffering from acute lung injury, one of the most common causes of respiratory failure in intensive care units. https://phys.org/news/2010-08-bone-marrow-stem-cells-critically.html Biochemistry Wed, 11 Aug 2010 15:25:32 EDT news200759117