international researchers have warned that dugongs, the aquatic mammals also known as sea cows, are on the brink of extinction. the international union for conversation of nature says the creatures are threatened by the loss of sea grass on which they graze, as well as the danger of being caught up in fishing nets or struck by boat propellers. scientists have also sounded alarm over the loss of other marine creatures, including exotic coral and shellfish. for more, i spoke to professor amanda vincent from the university of british columbia in canada. i think we need to be very aware that while plastics and pollution are definitely a concern for the ocean and something we must take seriously, but the biggest single threat to marine biodiversity is nonselective, poorly regulated fishing. so we need to get our fishing practices under control if we are to have healthy oceans. climate change, of course, is a major concern as well. the
because what will happen is that if it goes wrong, the city will still walk away with its profits and its bonuses, but yet again, it will be ordinary people and ordinary taxpayers who will have to pay the price. both the city and the government are convinced that not changing is the biggest risk to future growth of all. simon jack, bbc news. international researchers have warned that dugongs, the aquatic mammals also known as sea cows, are on the brink of extinction. the international union for conversation of nature says the creatures are threatened by the loss of sea grass on which they graze, as well as the danger of being caught up in fishing nets or struck by boat propellers. scientists have also sounded alarm over the loss of other marine creatures, including exotic coral and shellfish. for more, let s speak to professor amanda vincent from the university of british columbia. professor, we know of course about the coming terms of our oceans, the pollution, the plastic pollution w
manatees are, they are dying. a record number, more than a thousand. the mass dieoff boils down to pollution. fertilizer runoff from farms and lawns, leaking sewage from industrial solution. it makes its way into florida watersheds and creates algae blooms that crowds off clouds out sunlight killing off sea grass, the main food of the manatee. for the first time, starvation rather than boat propellers account for most of the manatee fatalities. if the sea grass isn t as abundant as it was. they have to go elsewhere for food. most of the 1,000 plus manatee deaths have happened
come true for me. the largest equine rescue in the world. currently we have 44 that live in our center. we are a nonprofit that provides service dogs to veterans, first responders, kids. we ve really created a movement to really let people know how worthy senior dogs are. [ applause ] work it out. work it out on the dance floor. that s what this is for. welcome back to cnn heroes. the state of maine has more than 2500 miles of coast line. it is home to one of our most beloved marine mammals the puppy dogs of the sea. seals. seals. i did not know they were called the puppy dogs of the sea. well you re the only one. apparently so. their greatest threat, however, is us, our fishing lines, boat
called the puppy dogs of the sea. well, you re the only one. apparently so. their greatest threat, however, is us. our fishing lines, boat propellers, and all the selfies that people take with seal pups, which actually cause the mothers to then abandon them sometimes. look, i get it. i get it. it s hard to stay away when they re that cute. that is adorable. but as cute as they are, we all need to leave them alone. and if they re injured, call the professionals for help, like our next hero. here to tell us her story is a supporter of the international rescue committee and one of the stars of the upcoming movie downton abbey, a new era, and the new law & order, hugh dancy. if we re lucky sometimes, we just know what we re supposed to do with our lives.