dr. alexander tvis beams like a proud father when recalling the day the seven pups were born. >> very nerve-racking until you heard the first crys and saw them wriggling around and it was really great. >> reporter: a home scientists had been trying to get to for 40 years. that's because without getting too heavy into the science behind the birds and bees of dogs, reproduction as much more complicated in canines than it is in other mammals. the technology opens the door to ways of preventing hereditary breeds. >> in vetro fertilization itself can't help prevent disease but what it does is gives us a way to generate embryos and so we can use new tongs to hopefully go in and fix certain genes that cause those diseases. >> reporter: instead of treating genetic diseases these doctors prevent them but first the >> sit. >> they're so cute. the ivf technology might also help endangered species. scientists can freeze samples from rare breeds and reintroduce them into the gene pool. >>> a little bit cooler over the last couple of days. temperatures back into the 40s. but that seasonable weather does not last

dr. alexander travises associate professor of reproductive biology at cornell university. >> this one here is a cross between a cocker spaniel and the beagle whereas this one over here is of beagle beagle and they all came from the same litter but they have different moms and dads but all born at the same time and were raised together. >> reporter: in vitro humans for decades cornell says until now gestational differences between us and our canine companions has prevented a successful treatment. >> it is important for the health of our pets because it opens up the possibility the we could identify stinginess like her disease and replaced with another gene before those odds are born. so instead of trying to cure disease we can help prevent it from happening in the first place. >> reporter: it is also seen as a way to preserve endangered breed of dogs including one called the african painted dog. los angeles robert gray, fox news. ben: that is interesting. juliet: the mets signed a shortstop. a lot of dealmaking as an going on behind the scenes. ben: you going to work for major league baseba

dr. alexander travis beams like a proud father when recalling the day the 7 pups were born 5 months ago.. (sot: alexander travis, phd - cornell university - :15 - :22) "...very nerve-wracking until you heard those first cries and saw them wriggling around and then.. it was really great." it was a moment scientists had been trying to get to for 40 years. that's because --- without getting too heavy into the science behind the birds and bees of dogs --- reproduction is much more complicated in canines than it is in other mammals. "yes, i like you, too!" so -- why do we care about the world's first litter of ivf puppies? besides the fact that they're just so cute -- the technology opens the door to ways of preventing in certain breeds. (sot: alexander travis, phd - cornell university - :50 - :59) "in-vitro fertilzation itself can't help prevent disease but what it does is it gives us a way to generate embryos and then we can use new technologies to hopefully go in and fix certain genes that cause those diseases." instead of treating genetic diseases -- these doctors some day may be able to p

dr. alexander travis beams like a proud father when recalling the day the 7 pups were born 5 months ago.. "...very nerve-wracking until you heard those first cries and saw them wriggling around and then.. it was really great." it was a moment scientists had been trying to get to for 40 years. that's because --- without getting too heavy into the science behind the birds and bees of dogs --- complicated in canines than it is in other mammals. "yes, i like you, too!" so -- why do we care about the world's first litter of ivf puppies? besides the fact that they're just so cute -- the technology opens the door to ways of preventing hereditary diseases like cancer in certain breeds. "in-vitro fertilzation itself can't help prevent disease but what it does is it gives us a way to generate embryos and then we can use new technologies to hopefully go in and fix certain genes that cause those diseases." instead of treating genetic diseases -- these doctors some day may be able to prevent them. but first -- the basics. "sit, sit" erika edwards, nbc news. the i-v-f technology developed at cornell al

dr. alexander travis beams like a proud father when recalling the day of seven pups were born five monthsing until you heard those first cries and saw them wiggling around, and then it was really great. >> reporter: it was a moment scientists had been trying to get to for 40 years. that's because without getting too heavy into the science behind the birds and bees of dogs, reproduction is much more complicated in ed id in canines is in other mammals. so why do we care about the first litter of ivf puppies besides the fact that they're just so cute, the technology opens the door to ways of preventing hereditary diseases like cancer in certain breeds. >> invittio fertilization itself can't prevent disease, but it gives us a way to generate embryos and we can use new technologies to hopefully go in and fix certain genes that cause those diseases. >> instead of treating genetic diseases in dogs some may be able to prevent them. >> erica edwards, nbc news. >> that ivf technology developed at cornell also has implications for endangered species. scientists can freeze and store semen and eggs of

dr. alexander travis is an associate professor of reproductive biology at cornell university. >> you'll see a cross between a cocker spaniel and a beagle. whereas this one over here is beagle beagle they all came from the same litter. they have different moms and dads but they're all born at the same time and raised together. >> while invitro fertilization has been used in humans for decades cornell says until now, gestational differences between us and our canine companions has prevented a successful treatme treatment. >> ibs is -- ivt if is important for the health of of our pets. it opens up the possibility that we could identify certain genes that cause disease and fix those, replace them way good copy of a gene before those dogs are even born. so instead of trying to cure disease, we can help prevent it from happening in the first place. >> reporter: canine ivf is also seen as way to preserve endangered breeds of dog including one called the african painted dog. in los angeles, robert gray, fox news. >>> ♪ >>> new at 6:00, a man uses a sneaky way to break in a local store but inside fo

dr. kermit gosnell is going to prison. in a case unrelated to his father, barren alexander was sentenced to 1 to 2 years in prison for burglary and aggravated assault. he broke into a home last year, the homeowner shot him. his dad dr. gosnell is serving life in prison for killing newborns and at least one adult. >> today the newest men and women in blue will be sworn in to the allentown police department. the mayor and the police chief will be there for the swearing in. and to award the badges to the city's newest members on the force. today's ceremony is at city council chambers beginning at 11:00. >> congratulations in order to a local high school student. this is the aaron passkin. awards high school leadership award. aaron started a student tutor club who donate time to teach children at a local elementary school. congratulations to him. >> starting today every grain of salt counts. not quite but how restaurants in new york are taking a unique step forward in the name of educating people about eating healthy. also ahead. ♪ >> his unforgettable voice sure got the pope's attention when he came to town. now philadelphia's b

dr. may: yes, that is he. that is john wilkes booth. alexanderlemen, please stand where you are and perfectly still. one, two, three. tom hanks: james wardell, one of lafayette baker's detectives, takes the single glass plate and delivers it to lafayette baker. it is presumed that baker gives it to secretary of war stanton. but no one knows. alexander gardner's photograph of the autopsy of john wilkes booth has never been found. the trial of the conspirators is a military tribunal. 366 witnesses testify. and all of the defendants are found guilty. and in attempting to create a definitive record of the people and events surrounding the assassination of abraham lincoln, alexander gardner and timothy o'sullivan are given extraordinary and exclusive access. on july 7th, 1865, the sentences are carried out for the first assassination of a president in the history of the nation. and mary surratt becomes the first woman ever to be executed by the united states federal government when she joins powell, atzerodt and herold on a scaffold at the old arsenal