Assertion: smooth hammerhead | /r/HasProperty | s. zygaena
Facets:
Source sentences:
text: The smooth hammerhead (S. zygaena) has a head that is similar in overall shape to the scalloped hammerhead but does not have the centrally placed indentation or notch that is characteristic of the scalloped hammerhead.
text: Smooth Hammerhead (S. zyganea), distinguished by a head with a smooth leading edge.
text: However, this view has been refuted by phylogenetic analyses using nuclear and mitochondrial DNA, which found that the great hammerhead and the smooth hammerhead (S. zygaena) form a clade that is basal to all other Sphyrna species.
text: Some species, such as the scalloped hammerhead (S. lewini) and smooth hammerhead (S. zygaena), form large schools that may be segregated by sex or age.