https://www.bbc.com/news/science-environment-57016998 #C1+ #IELTS #Reading 1. The Severn (n) a river in South Wales and southwest England which flows from the Welsh mountains to the Bristol Channel 2. Twaite /tweɪt/ (n) herring-like food fish 3. Twaite shad (n) a European shad (fish) with a deep blue back, silvery sides, and some spotting 4. Herring /ˈherɪŋ/ (n) a North Atlantic fish that swims in very large groups and is used for food shoals of herring fresh herring fillets pickled herrings None of them had anything to go for, so they agreed to stay on for the herring. 5. Dwindle (v) to become gradually less or smaller dwindling audiences a dwindling band of supporters Support for the party has dwindled away to nothing. Membership of the club has dwindled from 70 to 20. His money had dwindled away. The elephant population is dwindling. syn: lessen, fall, decline, decrease 6. Weir /wɪə(r)/ (n) a low wall or barrier built across a river in order to control the flow of water or change it...