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...and tuna diet isn’t sustainable. Expanding our seafood menus could be a vital way of keeping the ocean healthy while it supplies the food we need. Pallavi Anand, Lecturer in Ocean Biogeochemistry, The Open University and Daniela Schmidt, Professor in Palaebiology, University of Bristol This article was originally published on The Conversation. Read the original article....

...Open University, explores...Mars is usually depicted as a dry, cold, and inhospitable world… but plenty of evidence tells the story of a more benign planet: a Mars spotted with lakes and rivers. Nevertheless, at some point in the past, around 3.5 billion years ago, the martian atmosphere started becoming thinner and thinner, prompting the liquid water on the surface of...