Weird questions...

[TinkerBell]

Just had another question come to mind!!

Why do some whale's have a curved fin? Like in the picture below

[Matblack]

Scientists are not sure why the dorsal fins of some killer whales flop over and the dorsal fins of other do not.The dorsal fins of killer whales are supported only by connective tissue and not bone. In a study of killer whales in New Zealand waters, 23% of the wild males had dorsal fins that bent over. Newborn killer whales all have floppy dorsal fins that stiffen a few days after birth.
Scientists have a couple of theories as to why the dorsal fins of some killer whales flop over. One theory is that the surrounding water helps support the dorsal fin. A killer whale that spends more time at the surface, with its fin protruding out of the water, has a greater tendency for its fin to bend. Additionally, collagen becomes more flexible when warmed, such as if it is exposed to sunlight. Another theory supports a genetic tendency for a dorsal fin to bend. These two factors may work in combination or there may be other factors involved. The dorsal fin of an adult male killer whale can grow to six feet tall, which may be why their fins have a greater tendency to bend. Neither the shape nor the droop of a whale's dorsal fin are indicators of a killer whale's health or well-being.

http://seaworld-shamu.blogspot.com/2...er-whales.html

MB

[leowyatt]

hehe the thread reminds me of this, cue music