five years ago, jeff adams came to this spot near the town of john day and found some crayfish as easily as his traps nabbed more today. >> there were hundreds and hundreds of crayfish at one of the sites that we looked at. just off hand, but the sheer numbers seemed odd and out of place. >> reporter: other scientists realized these crayfish belongs a couple thousand miles away. >> certainly, it was a shock to see it up here. it's a well known species to cause a lot of ecological damage in the upper midwest and its never been found west of the rockies, west of the continental divide. that's a big concern when you see something hop the continental divide and invade a new... new region. >> reporter: from jeff's first spotting in 2005, rusty crayfish have sprinted downstream. they have now colonized 30 miles of the john day river. professor julian olden of the university of washington has been studying invasive species in the john day river for several years. >> they're pretty thick through here. take a couple of kicks. it's pretty much a crayfish under every rock. that's the reality of it.

just wait for the next move on the chessboa >> reporter: five years ago on this stretch of river jeff adams found only one rusty crayfish. >> and yesterday when i got back here for the first time in five years, from the second my foot hit the water, i probably saw 30 or 40 scatter away. >> reporter: since crayfish shipments continue to classrooms, northwest scientists will focus their efforts on teaching the teachers and their children. >> lehrer: you can see an extended version of that story by following a link on our website. >> woodruff: next tonight, the new republican house majority takes on foreign aid. ensuring the well-being of women and children has been a priority for the obama administration's foreign aid agenda. on capitol hill today, secretary of state hillary clinton defended global health programs. >> these programs stabilize entire societies that have been devastated by h.i.v., malaria, tuberculosis, and other diseases. they save the lives of mothers and children and they halt the spread of deadly diseases. we believe strongly that supporting women and girls is essential to

. >> osgood: anthony mason shows us some photographs taken by rock star brian adams. jeffenfield ponders the what if's of history. suze orman offers financial tips for tough times and more. but here are the headlines for this sunday morning the 13th of march, 2011. we begin with the latest from japan. a news agency now estimates more than 1800 people are either dead or missing after friday's massive earthquake and the tsunami that followed. but there are projections that the death toll could rise much higher, perhaps surpassing 10,000 in one state alone. some 170,000 people have been evacuated from a 12-mile area around fukushima nuclear power plant. a partial meltdown is underway now, and a second of the plant's three reactors. many of the households remain without power. at least one million have no water. it's now believed insured losses from the quake could be more than $15 billion. as supplies and personnel stream in from the united states and other nations, japan's prime minister is calling this the worst crisis his nation has faced since world war ii. the aftershock

the six finalists are, margot and jeff, john and carolyn, matt and brittany, clayton and adam, mike and brian and bryn and donna. and the winners are? john and carolyn, the gray team. john and carolyn, come on down! [ applause ] john and carolyn, i give you the keys to the -- each of you gets a 2012 ford focus. >> can i have a hug? rk how does it feel to be a champion? >> good. >> jimmy: what was the worst part of the trip? >> probably john's retainers. they were all over the car. >> jimmy: more than one? >> a little invisiline container. >> jimmy: are you a billionaire? >> no. >> jimmy: which of the teams were you happiest to beat and why? >> probably the red team. >> jimmy: why? arrogant? >> well, they, you though, they just say things that are kind of mean. >> jimmy: mean team? >> they're very good people. >> jimmy: the bullies lost, though. >> yeah. >> jimmy: congratulations to both of you. you can watch every episode of focus rally america on hulu.com/focusrally. and now, it's time to take a look back at some of the highlights. >> go! >> six teams competing in a cross country journ