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KasatkaAdministrator
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Dorsal fins
      #131959 - 01/13/06 09:08 PM

Other than the orca, which cetacean displays sexual dimorphism in dorsal fin size? (In other words, in which species would you see differences in dorsal fins between males and females?)

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~ Kim


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Joanna
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Re: Dorsal fins [Re: Kasatka]
      #131960 - 01/13/06 09:57 PM

Spectacled porpoise?

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Cat
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Re: Dorsal fins [Re: Joanna]
      #131962 - 01/14/06 07:04 AM

Both species of pilot whales.

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OrcaArtist
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Re: Dorsal fins [Re: Kasatka]
      #131966 - 01/14/06 12:45 PM

I also say Spectacled Porpoise.

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Amanda


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KasatkaAdministrator
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Re: Dorsal fins [Re: Kasatka]
      #131973 - 01/15/06 06:03 PM

Both are correct - though I've only read about the pilot whales and have never seen any comparison picture. Does anybody have one?

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~ Kim


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Joanna
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Re: Dorsal fins [Re: Kasatka]
      #131974 - 01/15/06 06:55 PM

Do you have any photos of spectacled porpoises? I've seen plenty of illustrations of them, but no actualy photos.

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OrcaArtist
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Re: Dorsal fins [Re: Joanna]
      #131975 - 01/15/06 10:07 PM

I've also only seen illustrations of them. I've looked in my books, and I can't find any photos.

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Amanda


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KasatkaAdministrator
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Re: Dorsal fins [Re: Joanna]
      #131976 - 01/16/06 10:50 AM

Yeah, I do.

Give me a few days though - my computer and scanner aren't set up yet.

The males are pretty funky looking.

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~ Kim


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KasatkaAdministrator
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Re: Dorsal fins [Re: Kasatka]
      #133531 - 05/08/06 12:33 AM

Sorry this took so long. We just got my scanner up this weekend.

Male on top, female on bottom:



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Dasha
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Re: Dorsal fins [Re: Kasatka]
      #133532 - 05/08/06 03:10 AM

Ah!! I didn't think that males have SUCH big dorsal fin! It's Australophocaena dioptrica?

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