El pez sierra se enfrenta a la extinción por sus atributos invdes.com.mx - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from invdes.com.mx Daily Mail and Mail on Sunday newspapers.
Hedge trimmer fish facing global extinction
BBC
They are the most extraordinary of fish, resembling hedge trimmers with fins .
The sawfish, which is a kind of ray, is also among the most endangered of the fish living in the oceans.
Once found along the coastlines of 90 countries, the animals are now presumed extinct in more than half of these, according to a new study.
They are vanishing due to habitat loss and entanglement in fishing nets, experts have said.
Their saws , which evolved to sense and attack prey, have now become a liability, making them prone to being caught up in fishing gear.
By Amy Woodyatt, CNN
Researchers say the sawfish is on the verge of extinction. (CNN)The sawfish is one of the ocean s stranger sights with its unique long, narrow nose lined with teeth, it resembles a hedge-trimmer or chain saw.
But the shark-like rays are on the brink of extinction, having vanished from half of the world s coastal waters, according to a new study.
Sawfish were once found on the coastlines of 90 countries. But now they are some of the world s most threatened marine fish, and are already presumed extinct in some 46 countries, researchers from Canada s Simon Fraser University said.
This fish looks like a hedge-trimmer - but its days could be numbered kvia.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kvia.com Daily Mail and Mail on Sunday newspapers.