service tunnel to safety. they were eventually transferred to a replacement train. some of those affected complained, describing poor communication, with the public address system not working properly. a eurotunnel spokesman says such incidents are unusual but not exceptional. researchers say the dugong a marine mammal also known as the gentle giant of the sea is now extinct in china. they have been over hunted, and the sea grass they feed on has been destroyed. the scientists behind the study say it s a devastating blow for the animals, a cousin of the manatee. but there is some good news from the natural world hen harriers in the peak district have had their most successful breeding season in more than a decade. according to the national trust, seven have fledged this year in the area, thanks to conservation efforts aimed at protecting the endangered birds of prey. yunus mulla reports. the hen harrier is one