>>> FINALLY TONIGHT, HE'S 90, SHE'S 53, AND NOW THEY'RE NEW PARENTS. TONIGHT, AT THE HOUSTON ZOO, THEY ARE CELEBRATING THE BIRTH OF THEIR NEWEST RESIDENTS. THREE ENDANGERED TURTLES. CALLED RADIATED TORTOISES. THEY ARE ENDANGERED. REMARKABLY, THEIR FATHER IS THE OLDEST RESIDENT AT THE ZOO, MR. PICKLES, THEY CALL HIM, 90 YEARS OLD. A FIRST-TIME FATHER. HE'S BEEN TAKEN CARE OF BY THE ZOO FOR 36 YEARS. MRS. PICKLES IS 53. THE TWO NEVER HAVING BABIES UNTIL NOW. THE BABIES, NAMED DILL AT THE BOTTOM, JALAPENO ON THE RIGHT, GHERKIN AT THE TOP. TINY ENOUGH TO HIT IN THEIR CARETAKERS HANDS. A HERRING TO KEEPER AT THE ZOO WITNESSED MRS. PICKLES LAYING HER EGGS AT CLOSING TIME, AND THEN SAVING THOSE EGGS. THEY BELIEVE IT'S THE ONLY REASON THE EGGS SURVIVED. CONSERVATIONISTS HAD LONG FEARED RADIATED TORTOISES COULD GO EXINCT. AND RIGHT HERE TONIGHT -- >> HI, DAVID. >> HERRING TO KEEPER CHRIS VALDEZ HOLDING DAD. >> BECAUSE WE HAVE TO QUICKLY RECOVER THOSE EGGS, WE WERE ABLE TO HATCH OUT THESE THREE RADIATED TORTOISE BABIES. >> NOW CHRIS AND THE TEAM WORKING TO ENSURE THESE BABY TORTOISES WILL BE AROUND TO CREATE THE NEXT GENERATION. >> THEY ARE GOING TO HELP US OUT IN THE LONG RUN WITH OUR SPECIES SURVIVAL PLAN. >> TONIGHT AT THE HOUSTON ZOO, THE PICKLES FAMILY GROWING.