Photo: Flickr, CC
Sharks through the Amounts
Sharks made an appearance about the fossil scene about 455 to 425 million years back (source).You will find about 440 species of sharks. (source)
They vary enormously in dimensions in one species to another. The dwarf lanternshark is about 6 inches lengthy as the whale shark can achieve 40 ft long and weight almost 80,000lbs.
Photo: Flickr, CC
Sharks are located in most corners from the world's oceans as much as depths of 6,600 ft (2 kilometers).
Shark lose their teeth, that are changed by brand new ones. Just one shark can lose over 30,000 teeth over its lifetime. (source)
Sharks come with an exceptional olfaction. Some species can identify bloodstream in water in amounts no more than 1 part per million, and from distances so far as one fourth mile. (source)
It's believed that as much as 100 million sharks are wiped out by people each year, because of commercial and leisure fishing. Meanwhile, the "average quantity of deaths worldwide each year between 2001 and 2006 from unprovoked shark attacks is 4.3".
Photo: Wikipedia, CC
The Disasters of Shark Finning
Sharks may be top potential predators within the oceans, but regrettably on their behalf, they are not towards the top of the pyramid in the world. The impact of humans on sharks may be the first factor to comprehend when searching at why shark populations they are under pressure and decreasing with time. And since they're top potential predators, they have developed to mature and reproduce gradually, so unlike other species, they cannot be anticipated to recover rapidly even when we're able to let them be for some time.
Photo: Public domain
Shark finning may be the practice if catching sharks, cutting their fins and tossing them in water to die gradually. Finning accounts for the dying which is between 73 million to 100 million sharks each year, as Jaymi reviews in her own publish about shark finning.
How come sharks being finned Because shark fin soup is popular in a few asian nations, and also the market price from the fins ($300/pounds last year) is a lot greater compared to market price from the relaxation from the sharks, therefore it is cheaper to merely restore the fins to ground.
Photo: Flickr, CC
Based on Shark Savers, "Existence inside the oceans, covering 2/3rds in our planet, has loved rapport with sharks for around 450 million years. Our growing interest in shark fin soup has elevated the slaughter of sharks to this type of large degree that lots of shark species happen to be approaching extinction. They might be all gone within only 10 or two decades." (emphasis mine)
There's just a little movement within the right direction, for example Taiwan tightening laws and regulations against shark finning, but a lot more must be done. Fortunately, new tools for example DNA identification might help within the fight for sharks' survival.
Take a look at Jaymi's publish on 4 technologies that will help safeguard sharks.
Photo: Flickr, CC
Safeguarding Shark Habitat
One method to help safeguard sharks would be to create sanctuaries on their behalf. An enormous the first is under rise in Micronesia. When completed, it will likely be two million square miles, a couple ofOr3 of how big the U . s . States!Blythe includes a great publish about 7 key shark habitats that require our protection.
Photo: Flickr, CC
Photo: Flickr, CC
Take a look at our slideshow from the 8 most endangered shark species.
For additional shark photos, browse the sharks which are swimming round the TreeHugger Flickr pool.
Photo: Flickr, CC
More about Shark Week
Shark Week: Win To Start Dating ? Together With Your Favorite Sea Celebrity
Shark Week: A Reason of Shark Finning
Shark Week and Biomimicry: Four Advanced Technologies Inspired By Sharks
Shark Week: Demon Seafood Dissects Sharks' History, Future, and "The Finest Scam everInch (The Review)
Shark Week: Four Unique Technologies Saving Sharks from Extinction
Shark Week: Electronic Shark Shield to keep Swimmer Safe Throughout Record-Setting Attempt
Shark Week: 8 of TreeHugger's Favorite Crazy, Awesome and Bizarre Shark Tales
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