fin

These data exist for many other hunted whale species, such as fin and sei whales, so the new study's methods could provide a framework for similar analyses for those whale species too.

Winter had put a life vest on the dog resembling a shark, with a dorsal fin protruding from its back.

Yet sea robins are most notable for their distinctively large, fan-shaped dorsal fins and for their six leg-like appendages.

They inserted tracking tags in the small coho salmon, and clipped tiny pieces from chinook salmon fins, placing them in envelopes for genetic testing.

The dorsal fin is like a dolphin's fingerprint, as each has distinctive notches, ridges and pigmentation.