Male and female humans are not all THAT similar. And other animals have differences too, such as horns/antlers or not, colorful plumage or not... Many of which are involved with mating. Perhaps male Tiburons developed the cauliflower ears as a mating attraction.

And that doesn't need to make sense NOW, it only needed to make some kind of sense in the past. Like now, obesity is not considered a good thing for a prospective mate. But in the past, it indicated prosperity etc.

by knix:

Male and female humans are not all THAT similar

The only difference is our sex organs; otherwise, both Human males and females have four limbs, a nose, two eyes, and two normal ears, and hair on their head.

Humans have different coloured skin, but each race has both male and female subjects, and not just males.

And other animals have differences too, such as horns/antlers or not, colourful plumage or not... Many of which are involved mating

Yes, in the animal kingdom, there are differences between some subjects, but we are talking about beings with advanced cognitive abilities, complex language, cultural evolution etc, and not just wildlife...beasts.

Perhaps male Tiburons developed the cauliflower ears as a mating attraction.

Africans have wider noses... It's an adaptation that helps them breathe better in Africa's warmer, humid climate. But both sexes have wider noses.

Tiburons are an advanced species like Humans, so I don't see why males would develop cauliflower ears as a means of attracting mates.

I still prefer your previous explanation...that Dr. Sevrin's ears might have been a fashion statement.

If the only differences were sex organs, there wouldn't be any concerns with men in women's sports, etc.

to knix.

I'm afraid you're missing my point, probably because I wasn't clear.

If we look at our wildlife, we can note differences between male and female eg a male lion, thanks to its genetics ( XY), sports a prominent thick mane and is stronger.

A female lion apparently is attracted to manes that are thicker, darker, and glossier because that means the male lion is very healthy and a suitable mate.

Despite these differences in build and aspect, both male and female have the same shaped ears, limbs, eyes, mouth, ect.

Male birds usually sport brighter colours to attract the "ladies," yet both male and female have the same skeletal structure.

Humans, being far more evolved, are in a different league and what goes for our wildlife doesn't apply to us.

Mother nature gives our wildlife a helping hand, making the males more attractive for mating etc.

Human males are hairy and built stronger due to their genetics( XY ), but both sexes still have the same shaped limbs, skull , ears, eyes because they evolved in the same way.

So, going back to Dr Servrin .. and your comment that maybe male Tuburions have cauliflower ears to attract females, is unlikely.

It’s more plausible to conclude that Dr.Sevrin modified his ear to make a statement, like you wrote in an earlier post.

Many humans in fact, pierce their ears , put buttons in their lobes to make their ears look different from all the rest, make them stand out and I presume more attractive .

Hopefully, you get what I mean now.