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What does the spiny dorsal fin do?

Updated: 8/19/2019
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Q: What does the spiny dorsal fin do?
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Do stingrays have Dorsal fins?

yes, they do it is next to their spiny dorsal fin.


Why some fishes have spiny dorsal fin only and some have soft dorsal fin only and others have both?

Because that's ahow god made them


What is a fresh water fish salmon family long spiny dorsal fin?

The Arctic grayling.


What is the perchs largest fin?

I think that the largest fin of a perch is the first dorsal fin, the one that is located on the top of the fish and is spiny.


What is the fin called on an orcas back?

The fin on the back of an orca is called the dorsal fin.


What is the dorsal fin?

The dorsal fin is the fin on the back of a fish, for example the typical triangular fin on the back of a shark is its dorsal fin.


What are the bones of the fish called?

Dorsal - Top of the fish Caudal - The "tail fin" Anal - Rear most fin on the bottom of the body Pelvic - Front set of finds on the bottom of the body Pectoral - Right behind the gills on the side of the fish's body


What does a female Orcas dorsal fin look like?

the female orca's dorsal fin is curved and the males dorsal fin is straight


What is the name of the fin behind the dorsal fin?

On a dolphin and most fish the fin behind the dorsal fin is the tail fin. Some fish, such as knife fish, have no dorsal fin or tail fin. Dolphins of course are mammals, not fish.


Is a fish's dorsal fin on its side?

No, a dorsal fin from a fish is on its back area.


What is the top fin on the fish called?

The fin on the top/back of all fish is called the "Dorsal Fin."


What is the second donsal fin?

Some sharks have a second dorsal fin, it's between the main dorsal fin in the middle of the back, and the tail. Not all fish have a second dorsal fin.