1. Mořské želvy v ohrožení: Můžeme jim pomoci i my? Creator: Svobodová, Hana Type: article, model:article, and TEXT Language: Czech Description: Endangered turtles. Among other causes for decline of turtles are hunting, gathering of eggs, dieback through deep-sea fishing, etc. Global warming and antropogenic activities must be taken into account. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public