Pipa pipa – 24 godziny seksu

Pipa pipa to nazwa płaza żyjącego w dorzeczu Amazonki. Polska nazwa to Grzbietoród amerykański.

Długość ciała grzbietoroda waha się od 10 do 17 cm, waga to około 500g. Samce są nieco mniejsze od samic. Żywi się owadami, robakami, małymi rybami. Jest płazem typowo wodnym, rzadko wychodzi na ląd.

Grzbietoród amerykański pipa pipa

Zdjęcie: https://thefroglady.wordpress.com/2016/04/19/p-is-for-pipa-pipa/

Grzbietoród ma nietypowy, ciekawy sposób rozmnażania.

Okres godowy przypada w porze deszczowej. Samce wabią samice odgłosami, natomiast samice wydzielają zapach wabiący i przyciągający samców.

Cykl godowy grzbietoroda trwa około 24 godzin. Samiec wchodzi na samicę i chwyta samicę pod tylnymi nogami. Ten uścisk trwa około 3 godzin. W tym czasie skóra na grzbiecie samicy nabrzmiewa. Otwór kloakowy samicy wydłuża się, przypominając błoniastą rurkę. Samiec poruszając się zagina rurkę, aby znalazła się ona między grzbietem samicy a brzuchem samca. Samiec co chwilę naciska brzuch samicy, aby wycisnąć jaja. Kiedy jaja znajdą się na grzbiecie samicy, samiec polewa je nasieniem. Para wykonuje pionowe salto, podczas którego jaja są rozprowadzane po grzbiecie samicy.

pipa pipa Grzbietoród amerykański

Zdjęcie: https://thefroglady.wordpress.com/2016/04/19/p-is-for-pipa-pipa/

Po 10 dniach jaja zagłębiają się w skórze samicy, a po 10 dniach otaczają się specjalną kieszenią lęgową.

Po ok. 4 tygodniach wylęgają się kijanki — każda w swojej kieszeni lęgowej. Po około 2-3 tygodniach opuszczają matkę, która zrzuca skórę — przechodzi wylinkę.

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