A photo of a golden horseshoe crab —one of the world’s most ancient and highly endangered animals— earned a marine photographer the grand title in the prestigious Wildlife Photographer of the Year contest. The Natural History Museum in London, which runs the competition, made the announcement Tuesday. The picture, taken by Laurent Ballesta, shows a tri-spine horseshoe crab on a seabed near Pangatalan Island in the Philippines, as it is followed by three golden trevallies. Ballesta documented the horseshoe crabs as they moved through water, fed, mated and provided a home to other animals, according to the museum. The Wildlife…