Reproductive system: There is a presence of two symmetrical dart sacs and two long accessory sacs, which are always longer than the dart sacs.
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A recent study at Xuzhou Medical College in China showed that, in male rats, cypermethrin can exhibit a toxic effect on the reproductive system.
Mussels form an essential part of its reproductive system, with bitterling eggs being laid inside them.
A striking parallel can be seen in the frog family Leptodactylidae, which has a very diverse reproductive system, including foam nests, non-feeding terrestrial tadpoles and direct development.