Live-bearing manta ray: how the embryo acquires oxygen without placenta and umbilical cord

We conducted an ultrasonographic experiment on a pregnant manta ray, Manta alfredi (Chondrichthyes, Batoidea). This study showed how the embryo of the live-bearing elasmobranchs respires in the body of the female. In the embryonic stage, the manta ray embryo takes in uterine fluid by buccal-pumping....

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Hlavní autoři: Tomita, Taketeru, Toda, Minoru, Ueda, Keiichi, Uchida, Senzo, Nakaya, Kazuhiro
Médium: Artigo
Jazyk:Inglês
Vydáno: The Royal Society 2012
Témata:
Animal Behaviour
On-line přístup:https://ncbi.nlm.nih.gov/pmc/articles/PMC3440971/
https://ncbi.nlm.nih.gov/pubmed/22675137
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1098/rsbl.2012.0288
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