The rear fins were downsized and largely gone by the mid-1960s, as was the excessive chrome.

The soft rear fins also have one or two spines, but which are mostly made up of rays that range from 12 to 15 in number.

Males have adapted to this by evolving bright spots on their rear fins that strongly resemble eggs.

He also opened an instrument panel located on the rear fin of the beacon.

A crest medallion was seen on the forward angled rear fins.

The rear fins extend past the body of the fish and meet its tail fin.

The three stumpy rear fins had broadened out, becoming thinner to angle back.

The fossil discovered in 2004 did not include the rear fins and tail.

Control is by forward rudders with large rear fins.

The black spot, slightly smaller than the pupil, is centred on the rear fin.