Nový druh ryby z Amazonie

20. září 2010 v 20:02 | forusrakos |  starší články
Nejen mezi pravěkými tvory je spousta nováčků, nové druhy přibývají i ve světe současných zvířat. Minulý týden objevila expedice vedená Paulem Petrym v pralesích Peru nový druh sumcovité ryby patřící mezi krunýřovce. Nález měřil 70 centimetrů, a co je na něm nejpodivnější jsou jeho zahnuté zuby, které žádný příbuzný druh nemá. Podle vědců slouží zuby k seškrabávání stromové kůry, kterou ryba v trávicím ústrojí převádí na lépe stravitelný cukr. Ještě větší zajímavostí je ale její strava v nouzi, dokáže se totiž živit i výkaly jiných ryb. Domorodci tuto rybu znali odnepaměti a také ji obtížně lovili. V současnosti je ale díky rozvíjející se lidské civilizace v ohrožení.
Na obrázku je Paul Petry se svým nálezem, nahoře je potom chrup nového krunýřovce. Informaci i obrázky mám z www.novinky.cz...tady.
 

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