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Researchers have identified the first documented case of a transmissible melanoma in brown catfish, marking the first contagious cancer found in fish and in a freshwater ecosystem.
An analysis of over 40 million papers finds that AI tools boost individual researchers' productivity and career advancement but narrow the scope of scientific inquiry, leading to less diverse and original discoveries, as published in Nature.
A study published in Nature presents evidence that the universe may not be uniform on the largest observable scales, challenging a fundamental pillar of modern cosmology. Researchers found persistent coherent structures in galaxy distribution that do not fade into a uniform background as expected.