Assertion: skate's fin | /r/HasProperty | prominent dorsal
Facets:
Source sentences:
text: Skates may also have a prominent dorsal fin (or two fins) near the end of their tails; rays usually do not, and unlike stingrays, skates lack venomous spines in their tails.
text: Also, skates typically have a prominent dorsal fin while the dorsal fin is absent or greatly reduced in rays.
text: In terms of anatomy, skates have a prominent dorsal fin while rays have a reduced or no dorsal fin at all.