While dolphins are in fact also whales, I'll keep them out of the equation here and just focus on species that actually have 'whale' in their common English name. Though even then you'd come to no specific species whose name starts with an 'R' but has a dorsal fin. Atlantic northern, Pacific northern and Southern right whales - who don't have dorsal fins! - also technically speaking don't have a name that truly starts with an r. So all in all, there are none ;) But, when looking at the greater good, there is the family of the Rorquals, or streamlined baleen whales. These all do have dorsal fins, and include familiar faces like the Blue, Minke and Humpback whale.
dorsel fin
There are several species and sub species of whale. Some of the most well known are the blue whale, fin whale and the humpback whale. Whilst the fin whale species have largest fin length, most whales tend to a have a dorsal fin of some description.
Humpbacks, Fin whales, Bryde's whales and Gray whales, some of which are endangered species
Its front fins are used to steer the dolphin through the water. The dorsel fin helps so the dolphin does not roll while swimming.
The blue, fin, minke, gray, and sperm whale. These whales are not only species that might be a variation of Humpback whales but are acknowledged to have interactions with Humpback whales.
Yes whales have fins :) Some do, depends upon the species you are referring too...
Fin whales have two pectoral fins and a dorsal fin.
There are a variety of endangered species from Italy. Some of these include fin whales, as well as red deer.
No. Blue whales have mated with fin whales.
Yes, fin whales (Balaenoptera physalus) are classified as Endangered.
In the summer fin whales migrate to cold waters and in the winter fin whales migrate to warm waters.
They eat small fish in schools and zooplankton so they do depending on the species. Fin whales, humpback whales, Bryde's whales and sei whales all eat small fish.