Feeding behaviour in a ‘basal’ tortoise provides insights on the transitional feeding mode at the dawn of modern land turtle evolution by Nikolay Natchev, Nikolay Tzankov, Ingmar Werneburg, Egon Heiss

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New records of Largemouth Black Bass, Micropterus salmoides (Lacépède, 1802) (Pisces, Centrarchidae), in Bulgaria by Kiril Valkanov, Nikolay Kolev, Teodora Koynova, Nikolay Natchev

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Ontogenetic Changes of the Aquatic Food Uptake Mode in the Danube Crested Newt (Triturus dobrogicus Kiritzescu 1903) by Nikolay Natchev, Nikolay Natchev, Kristina Yordanova, Sebastian Topliceanu, Sebastian Topliceanu, Sebastian Topliceanu, Teodora Koynova, Dimitar Doichev, Dan Cogălniceanu, Dan Cogălniceanu

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New records of Xerotyphlops vermicularis (Merrem, 1820) indicate the northernmost locality of the species in the Balkan Peninsula by Teodora Koynova, Pavlina Marinova, Nikola Stanchev, Nikolay Natchev, Daniel Jablonski

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Contributions to the functional morphology of caudate skulls: kinetic and akinetic forms by Nikolay Natchev, Stephan Handschuh, Simeon Lukanov, Nikolay Tzankov, Borislav Naumov, Ingmar Werneburg

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Temperature regulation in the Balkan spadefoot (Pelobates balcanicus Karaman, 1928) at the beginning of nocturnal activity by Nikolay Natchev, Teodora Koynova, Krasimir Tachev, Dimitar Doichev, Pavlina Marinova, Valeriya Velkova, Daniel Jablonski

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Piscivorous Vertebrates That May Pose a Risk to the Critically Endangered Mandra Shemaya, <i>Alburnus mandrensis</i> (Drensky, 1943) (Actinopterygii; Leuciscidae) by Dimitar Dimitrov, Tihomir R. Stefanov, Vladimir Mladenov, Ivaylo Dimchev, Kiril Valkanov, Nikolay Kolev, Nikolay Natchev

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ASSESSMENT OF THE BIOACCUMULATION OF MICROPLASTICS IN THE BLACK SEA MUSSEL Mytilus galloprovincialis L., 1819 by Sevginar Ibryamova, Stephany Toschkova, Darina Ch. Bachvarova, Aysel Lyatif, Elitca Stanachkova, Radoslav Ivanov, Nikolay Natchev, Tsveteslava Ignatova-Ivanova

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Determination of the antimicrobial activity of lactic acid bacteria isolated from the Black sea mussel Mytilus galloprovincialis Lamarck, 1819 by Tsveteslava Ignatova-Ivanova, Sevginar Ibryamova, Darina Bachvarova, Seniha Salim, Simona Valkova, Yoanna Simeonova, Dimitar Dimitrov, Radoslav Ivanov, Nesho Chipev, Nikolay Natchev

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Mapping the Distribution and Population Status of <i>Alosa immaculata</i> and <i>Alosa tanaica</i> (Teleostei, Clupeidae) in the Bulgarian Black Sea Area by Desislava Rozdina, Yana Stoyanova, Georgi Terziyski, Slavi Studenkov, Boris Karakushev, Venceslav Delov, Konstantin Mihaylov, Dimitar Kozhuharov, Yordan Kutsarov, Nikolay Kolev, Nikolay Nedyalkov, Nikolay Natchev

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