. - chris eckstrom is my wife. she's my partner. - we met at the "national geographic". frans was a freelance photographer, and i was a writer. and we've been pretty much together ever since. i cover the behind-the-scenes side of our assignment work, producing stories about our work in the field. - i started off photographing animals one at a time, focusing on the charismatic mammals and the big birds, working with nature in a very intimate way. but i also began to work with scientists, and they taught me a lot about the way the natural world works. - this used to be an old sea floor. - and as their ideas began to evolve, so did my vision of what i should photograph. (whimsical music) i was on the shores of delaware bay one evening, photographing horseshoe crabs for "national geographic". and thousands of them are coming out of the water, which they do every spring when they spawn at the tide line. and as modern new jersey was fading away in twilight, i felt like i was transported back in time as the only observer in a world that was truly prehistoric because these crabs

. - chris eckstrom is my wife. she's my partner. - we met at the "national geographic". frans was a freelance photographer, and i was a writer. and we've been pretty much together ever since. i cover the behind-the-scenes side of our assignment work, producing stories about our work in the field. - i started off photographing animals one at a time, focusing on the charismatic mammals and the big birds, working with nature in a very intimate way. but i also began to work with scientists, and they taught me a lot about the way the natural world works. - this used to be an old sea floor. - and as their ideas began to evolve, so did my vision of what i should photograph. (whimsical music) i was on the shores of delaware bay one evening, photographing horseshoe crabs for "national geographic". and thousands of them are coming out of the water, which they do every spring when they spawn at the tide line. and as modern new jersey was fading away in twilight, i felt like i was transported back in time as the only observer in a world that was truly prehistoric because these crabs