Rosy bitterling or Tairiku baratanago, Rhodeus ocellatus. Couple, male above. Female introduces the oviduct inside freshwater mussel

Rosy bitterling or Tairiku baratanago, Rhodeus ocellatus. Couple, male above. Female introduces the oviduct inside freshwater mussel

Paulo Oliveira / Alamy Stock Photo

Image ID: K937X7

(Margaritifera margaritifera) and deposits the eggs. Male sheds sperm into the inhalant current of the respiring mussel and thereby, fertilizes the eggs. Fry remain in the mussel until protection is not anymore required. Canton River- aquarium. China