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Tre nuove specie di antechini, piccoli marsupiali insettivori simili a roditori, sono state scoperte in una foresta pluviale nel nord-est dell'Australia.
La scoperta, merito dei ricercatori dell'Università tecnologica del Queensland, viene definita eccezionale. In genere, infatti, si individuano non più di due specie di mammiferi al mondo ogni anno e trovarne tre nella stessa area, per altro patrimonio mondiale dell'UNESCO è evento davvero singolare.
Queste bestioline sono note per le loro abitudini sessuali suicide: i maschi, dal ciclo vitale brevissimo, muoiono in massa dopo l'unico accoppiamento della loro esistenza; a sfinirli è una copula che può prolungarsi anche per 12 ore, per garantire la quale il loro corpo si priva di proteine basilari e il loro sistema immunitario viene soppresso, così da liberare energia metabolica supplementare.
ANSA/dg
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