8 个月
HowStuffWorks on MSNToad vs. Frog: Differences in Anatomy, Habitat and Morefrog identification. On the surface, these amphibians appear a lot alike, thanks to similarities in their body types ... bumpy skin serves as camouflage. Reproduction for both amphibians follows ...
In frogs, it was not so much sexual development ... Fish tapeworm blocks development of reproductive organs in host fish ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果