fresh water SHARKS!!! whats next fresh water hump back whales??? jeez

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wow impressive it just shows you the world is ever yet changing
 
Oh yeah,the bullshark.Whats with the commercials we have to sit through before we can view the link?
 
livebearerfreak;3813981; said:
so is that really an actual shark??? if it is jeez whats next humans develeping gills to swim with our beloved fish?
It is a real shark and is nothing new.The pups live in freshwater and hide among the mangrove swamps and return to the ocean when they grow big enough to fend for themselves.
 
yea but if they hide in the freshwater for so long wont there body get used to the ph, kh, gh of freshwater? i would think that if they were in freshwater for so long and then travel to saltwater-brackish water there body wouldnt beable to take the salt gravity? so how does this really work?
 
bullsharks have been doin it for millions of years. it's nothing new.
 
and if we had a big enough tank ( plus i dont really think anyone in the hobby does besides the guy with the 50,000 gallon or how ever big tank he has ) we can raise then in freshwater?
 
peewee;3814011; said:
bullsharks have been doin it for millions of years. it's nothing new.
They may be the only sharks with this ability.The adults have been known to travel miles upstream which gives them the potential to be quite dangerous.
 
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