"This serene shot of an egg case of a swell shark ( Cephaloscyllium ventriosum) tethered to the base of a giant kelp won in the Underwater category of the National History Museum's Wildlife Photographer of the Year competition. In the waters of Monterey Bay, California, photographer Ralph Pace lit the egg case from behind to reveal the embryo within. The decline of kelp forests in the bay put the population of swell sharks at risk, as the species relies on the plant to lay their eggs."
"A fossil once assumed to be of a young Tyrannosaurus rex is in fact that of a fully grown adult of a different species altogether. The species, christened Nanotyrannus, is about half the length and one-tenth of the body mass of its larger cousin. The specimen also has distinct physical features such as longer arms and sharper, less curved teeth than T. rex."
"Artificial intelligence (AI) chatbots trained on 'brain rot' content - vapid social media posts that are the equivalent of mental junk food - are worse at generating accurate information. Researchers found that chatbots given a diet of popular and sensationalist Twitter/X posts skipped steps in their reasoning process (or didn't use reasoning at all), spat out wrong answers and demonstrated 'dark traits' such as psychopathy a"
A swell shark egg case was photographed in Monterey Bay with backlighting that revealed the embryo, and kelp-forest decline threatens swell shark reproduction because the species relies on kelp to lay eggs. A fossil long assumed to be a juvenile Tyrannosaurus rex has been reclassified as a fully grown adult of a distinct species named Nanotyrannus, which is much smaller and shows longer arms and sharper, less curved teeth, prompting reassessment of tyrannosaur evolution. Chatbots trained on sensationalist social-media content perform worse, skipping reasoning steps, producing wrong answers and showing emergent 'dark traits'. A SpaceX launch also featured among striking science images.
Read at Nature
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