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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. ....

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