this coral called mutsu-sango grows in places where sunlight can't reach. it looks like dandelion that grows in the dark. the team advances toward the center of the cave. further in, the water became shallow. the ocean floor begins to appear. we reach an area above water where we can walk. we discovered a large colony of bats on the ceiling. >> translator: it was more than expected. this island is so inspiring, because there are so many more parts that have yet to be explored. >> reporter: humans have stayed away. so the caves are the domain of many small creatures. they, as well as the blue light, make the caves seem like a magical vision. nhk world, wakasa. >> amazing images. thanks for that report. >>> weatherwise, a historic weather event took place in portions of the u.s. deep south this weekend. our meteorologist jonathan oh joins us with the details. jonathan, what was special about this weekend's weather. >> james, usually we don't even talk about snow in the far deep south of the united states, but not only did we see snow down into portions of sou

people thought any brand-name sanger or sango which is how they often sell the product would be identified as something that gave women control over reproduction. >> host: it's interesting because even though this is the last decade of her active life and sanger had lost control of most of the organizations that she helped found and she always hated the name planned parenthood. she thought that was mealymouthed. she preferred birth control which she had invented. but she organized this huge conference in japan, an international conference on reproductive developments. she was in her late 70's than and i just thought you know she's an older woman and she still incredibly active even at a time when people are saying she's an old has-been and we don't care about her. but she was really still very awkward. >> guest: was 1955 when she held a conference in japan and she brought pinkos over and told the press they were going to declare this new form of birth control have been discovered that was now going to be an oral contraceptive and this would change the world. john rock said you can't go ove

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