Polecamy Artykuły Nowości
Pierwsze kroki ornitologa, cz. 4
Zapraszamy do kolejnego odcinka przeglądu gatunków łatwych do rozpoznania ptaków. Tym razem dalszy ciąg wróblowych.
Nurkowanie wspiera badania nauko…
Nurkowanie jest obecnie istotną częścią nauki. Pozwala na gromadzenie unikatowego materiału badawczego z rejonów, w których inne techniki zawodzą oraz umożliwia uzupełnienie brakującej wiedzy o przybrzeżnej strefie dna twardego. Nowatorskie…
Jadowite lekarstwa
Czy jad może nam pomóc? Powszechnie wiadomo, że jad wprowadzony do organizmu może wyrządzić raczej krzywdę niż pożytek. Doniesienia naukowców wskazują jednak na to, że niekiedy jad może mieć zbawienne działanie.
Stres ekologiczny
Stres ekologiczny w populacji wioślarki może spowodować, że z rosłego, dorodnego pokolenia dziadków wyrośnie chude i drobne pokolenie wnucząt, a niekiedy odwrotnie, w zależności od czynnika stresującego.
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Niagara – widoczne dwie części: American i Canadian Falls. </span><span style="font-size:11.0pt;line-height:115%;font-family:"Calibri","sans-serif";
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EN-US;mso-bidi-language:AR-SA" lang="EN-US">Fot. Safron Blase, źródło: <a href="http://commons.wikimedia.org/wiki/Niagara_Falls#mediaviewer/File:Niagara_Falls_Storm.jpg">http://commons.wikimedia.org/wiki/Niagara_Falls#mediaviewer/File:Niagara_Falls_Storm.jpg</a></span><!--[if gte mso 9]><xml>
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Wodny spektakl
Czy jest wśród Was ktoś, kto nie słyszał o wodospadzie Niagara? Wodospad ten znajduje się na granicy Kanady i Stanów Zjednoczonych. Nie jest największy na świecie, nie niesie najwięcej wody. W czym tkwi jego magia?