dolphins scare sharks away - is this true?

[Jihforce]

Nope. Actually sharks sometimes eat dolphins.

[Grimm]

Dolphins kill sharks too. Dolphins will swim at top speed and ram a shark in the side. This causes internal injuries and can kill the shark.
They don't like each other much...

[DARTH]

Yes Dolphins and Porposis (sp?) do in fact scare sharks away. Having surfed for 16 years of my life this is a fact I am well aware of. The mammals pointed beak is used as a ramming mechanism and the fact that sharks can only move on an even plane enables the dolphins to circle underneath the shark and puncture the sharks belly with the bottle nose. When I use to pull dawn patrol it was always a good sign to see schools of dolphins in the water as we knew there were no sharks within about 300 yards. Also research divers often use tame dolphins to guard against sharks.

[coleslaw]

I think the high-pitched shreeks of dolphins also stimulate the dorsal nerve of sharks, causing them to swim away from the source. If you don't know what that is, check a biology book for fish anatomy.

[sbp]

Dolphins aren't all that nice either.

[Apex]

Yeah, flipper's a big bully. Didn't you know that?

Here's in interesting fact though, great whites can swim straight up (they're the only sharks to be able to. That's the main reason they're such effective seal eaters compared with other sharks). They're also the only shark to be able to regulate its body temperature.

[Loki]

Originally posted by Apex
Yeah, flipper's a big bully. Didn't you know that?

Here's in interesting fact though, great whites can swim straight up (they're the only sharks to be able to. That's the main reason they're such effective seal eaters compared with other sharks). They're also the only shark to be able to regulate its body temperature.

Also why you see those pictures of them breaching out of the water like whales do. Kinda scary to see a huge great white coming completely out of the water to grab a meal. :bawl:

[Grimm]

Dolphins are pretty smart. I think they know that we steal their tuna herds (dolphins herd tuna for food in case you didn't know) and kill dolphins all the time (even if by accident). Maybe after a few decades of being careful not to bother them and if we leave their herds of tuna alone they will warm up to us.

[coleslaw]

Another little known shark fact:

Many people think that sharks are constantly swimming around because they are simply eating machines - all they do is eat and swim. Well, this may be partly true, but sharks MUST be swimming constantly or they will sink! :wow:

They are so muscular and heavy that they are not bouyant enough to float while stationary. Most fish, on the other hand, have an inflatable swim bladder that regulates their bouyancy.

[Loki]

Originally posted by coleslaw
Another little known shark fact:

Many people think that sharks are constantly swimming around because they are simply eating machines - all they do is eat and swim. Well, this may be partly true, but sharks MUST be swimming constantly or they will sink! :wow:

They are so muscular and heavy that they are not bouyant enough to float while stationary. Most fish, on the other hand, have an inflatable swim bladder that regulates their bouyancy.

Don't they also have to keep swimming to keep a constant flow of water running through their gills?

On a side note: do sharks acutally sleep? If they do they they probably go to the bottom and just lie there?

[DoPeY5007]

Originally posted by Loki




On a side note: do sharks acutally sleep? If they do they they probably go to the bottom and just lie there?


i think they sleep while they swim slowly.....:sleep:

[Grimm]

Originally posted by Loki


Don't they also have to keep swimming to keep a constant flow of water running through their gills?

On a side note: do sharks acutally sleep? If they do they they probably go to the bottom and just lie there?

It used to be thought that sharks needed to keep swimming to breathe. But that was found to be untrue. Sharks do sleep, they lie on the botom and rest.
One of the benifits of living in San Diego is that I get to go to Seaworld frequently as I have a year round pass.

[Loki]

Originally posted by dopey5007



i think they sleep while they swim slowly.....:sleep:

Wow that would suck. That's like trying to sleep while walking slowly.

[DoPeY5007]

Originally posted by Loki


Wow that would suck. That's like trying to sleep while walking slowly.


hehehe

yeah it would be like sleep walking.. or sleep swimming!!!...:hmm: :heh: :hihi:

[irwin]

Originally posted by dopey5007
yeah it would be like sleep walking.. or sleep swimming!!!...:hmm: :heh: :hihi:

::rimshot::

[Burzhui]

Originally posted by coleslaw
Another little known shark fact:

Many people think that sharks are constantly swimming around because they are simply eating machines - all they do is eat and swim. Well, this may be partly true, but sharks MUST be swimming constantly or they will sink! :wow:

They are so muscular and heavy that they are not bouyant enough to float while stationary. Most fish, on the other hand, have an inflatable swim bladder that regulates their bouyancy.

Not true they have found several caves where sharks sleep, it's an unexplained phenomenon

also dolphins do scare sharks away and have been known to kill them, they also save humans when they are attacked by sharks, there were many accounts of that

[DoPeY5007]

Originally posted by Passwird


::rimshot::

ooooch!!!... :poke:

[DoPeY5007]

Originally posted by Burzhui


Not true they have found several caves where sharks sleep, it's an unexplained phenomenon




I don't think that finding a cave of sleeping sharks would be fun....:eek3:

[Burzhui]

Originally posted by dopey5007



I don't think that finding a cave of sleeping sharks would be fun....:eek3:

yea especially if all of them wake up at that time to go to work or something, can you immagine?

[Lolita]

Did anyone ever read "So Long and Thanks For All the Fish"?

[ironchef]

Originally posted by Lolita
Did anyone ever read "So Long and Thanks For All the Fish"?
You're asking this question of a bunch of geeks? :rolleyes:

Does the pope crap in the woods?

Are bears catholic?

[Burzhui]

Lolita, you are asking the wrong crowd... i'd say that 80% have read at least 1 book by Douglas Adams... me on the other hand, i am still waiting to get the hitchhikers guide to the galaxy

[attgig]

you all know he died in may?!?!? :( :bawl:

anyways, about sharks....
my friend has always said, if you get attacked by sharks, poke em in the eye :D

[Markel]

Originally posted by att gig

my friend has always said, if you get attacked by sharks, poke em in the eye :D
Actually, one recommendation I have heard is that if you are being attacked try to punch them in the nose, as they have loads of nerves there.

[Grimm]

I think getting out of the water and dropping in a depth charge would work better.

[Jihforce]

Old news but still sad.

http://abcnews.go.com/sections/us/DailyNews/sharkattack010903.html

Personally, I don't believe that sharks simply are scared of dolphins, I think they just don't get along. So they are known to fight each other. Kind of like Great Whites and Killer Whales.
Just because you are swimming with Dolphins doesn't exactly mean you won't be bitten/eaten by a shark. I guess it also depends on the shark. I highly doubt dolphins are stupid enough to mess with a great white shark.

[Loki]

Originally posted by evilcyclops


It used to be thought that sharks needed to keep swimming to breathe. But that was found to be untrue. Sharks do sleep, they lie on the botom and rest.
One of the benifits of living in San Diego is that I get to go to Seaworld frequently as I have a year round pass.


Hey can I borrow your pass? Just for one day some weekend? I havne't been to seaworld in years and I would like to visit again.

[Grimm]

They check the picture on the pass. You would have to look something like me to get in.
Sounds like we need to find a SeaWorld deal for you.

[Loki]

Ya definitely need to find a seaworld deal for me. I can't believe how much prices on theme parks have gone up. I remember when you could get in anywhere for $20 or less. Now it's in ecess of $30 to $40. :rolleyes: