>> ♪ DINOSAUR TRAIN ♪ [TRAIN'S WHISTLE BLOWS] >> ♪ DINOSAUR TRAIN ♪ >> ♪ ONCE UPON A TIME THERE WAS A MOM HER NAME WAS MRS. PTERANODON SITTING ON HER NEST SHE HEARD A SCRATCHING AND SAID... ♪ >> OH, BOY!

MY EGGS ARE HATCHING!

>> ♪ ONE BY ONE HER KIDS POPPED FREE BABY PTERANODONS 1, 2, 3 ♪ >> I'LL NAME YOU TINY, SHINY AND DON.

>> ♪ BUT TINY SAID... ♪ >> WAIT!

THERE'S ONE MORE, MOM!

>> ♪ LAST LITTLE BABY WAS A DIFFERENT SIZE WITH TEETH AND A TAIL AND BIG GREEN EYES HE DIDN'T LOOK ANYTHING LIKE THE REST ♪ >> WHAT AM I DOING IN A PTERANODON NEST?

>> ♪ BUT DEAR OLD MRS. PTERANODON SAID... ♪ >> OH, THIS IS YOUR FAMILY, AND I'M YOUR MOM.

YOU MAY BE DIFFERENT, BUT WE'RE ALL CREATURES.

ALL DINOSAURS HAVE DIFFERENT FEATURES.

COME ON, BUDDY.

WE'LL TAKE A VACATION.

I'LL GET US A TICKET AT PTERANODON STATION.

WE'LL TRAVEL THE WORLD IN SUNSHINE AND RAIN AND MEET ALL THE SPECIES ON THE... >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ WE'RE GONNA RIDE ♪ >> ♪ RIDE, RIDE, RIDE, RIDE ♪ [TRAIN'S WHISTLE BLOWS] >> ♪ THE DINOSAUR TRAIN ♪ [ROARING] [CAPTIONING MADE POSSIBLE BY THE JIM HENSON COMPANY] >> I THINK I CAN WIN THIS RACE.

>> NO WAY.

IT'S DON'S TIME TO SHINE.

>> ACTUALLY, DON AND TINY, IF ANYONE'S GOING TO SHINE, IT'S ME--SHINY.

IT'S MY RACE, SO SEE YOU TWO AT THE FINISH LINE.

>> IT'S NOT JUST--OH--US TWO.

DON'T FORGET ABOUT BUDDY.

HEY, WHERE IS HE?

[BUDDY PANTING] >> AND THE WINNER IS-- >> ME!

>> ME!

>> US!

IT'S A TIE.

>> GO, BUDDY, GO!

RUN LIKE THE WIND!

[BUDDY PANTS] >> WHEW.

>> OK, LET'S RACE ONE MORE TIME.

I KNOW I CAN WIN!

>> WELL, I KNOW I CAN'T.

YOU GUYS CAN ALWAYS FLY FASTER THAN I CAN RUN.

>> HOW ABOUT IF YOU START RUNNING, BUDDY, AND WE'LL COUNT TO 4 BEFORE WE START FLYING?

>> OR WE FLY WITH OUR EYES CLOSED WHILE SINGING A SONG.

>> I HAVE AN IDEA.

HOW ABOUT YOU THREE DON'T FLY, YOU RUN, LIKE ME?

>> WELL, WE COULD TRY THAT.

>> BUT I'M NOT GOING TO CLOSE MY EYES.

STILL, I MIGHT SING A SONG.

♪ LA-LA-LOOH ♪ >> GO FOR IT, DON.

OK, LINE UP HERE, AND WE RACE TO THE RED BUSH.

1, 2, 3, GO!

YES!

>> YAY!

BUDDY WINS THE RUNNING RACE!

>> YOU KNOW WHY?

BECAUSE BUDDY'S THE FASTEST RACER AROUND.

THERE'S NO ONE FASTER THAN MY BROTHER, NO ONE.

>> HMM.

MAYBE DON'S ACTUALLY RIGHT.

YOU DID RUN REALLY FAST, BUDDY.

>> I'M RIGHT.

BUDDY'S THE FASTEST!

WHOA--OW.

>> I DON'T KNOW, DON.

I REMEMBER THE CONDUCTOR TELLING ME ABOUT A DINOSAUR THAT'S REALLY, REALLY FAST.

IT'S CALLED ORNITHOMIMUS.

>> HOW DO YOU REMEMBER THAT NAME?

ORNA--ORNA--I ALREADY FORGOT IT.

>> BUDDY SAID ORNITHOMIMUS.

[SCREECHING] >> ORNITHOMIMUS?

THEY ARE VERY FAST RUNNERS.

>> BUT ARE THEY AS FAST AS BUDDY?

>> MAYBE THERE'S A WAY TO FIND OUT.

>> MOM, MOM, CAN WE GO ON THE-- >> THE DINOSAUR TRAIN?

ON AN EXPEDITION TO MEET THE ORNITHOMIMUS?

WHAT A GOOD IDEA.

>> HOORAY!

YAY!

>> CAN I STAY HOME AND KEEP DAD COMPANY?

>> OH, SURE, SHINY.

SEE YOU SOON.

[LAUGHING] >> YOU KNOW, I BET IF BUDDY WANTED TO, HE COULD RUN FASTER THAN THE DINOSAUR TRAIN.

>> I'M NOT THAT FAST, DON.

>> MAYBE YOU ARE.

I BET YOU ARE.

YOU ARE.

[TRAIN WHISTLE BLOWS] [BRAKES SCREECH] >> HELLO, PTERANODONS AND T. REXES.

WELL, ONE T. REX, AT LEAST.

>> HELLO, MR.

CONDUCTOR.

>> READY TO RIDE THE DINOSAUR TRAIN?

>> YES!

>> ALL ABOARD!

[TRAIN WHISTLE BLOWS] SO, WHERE ARE WE HEADED TODAY?

>> TO A PLACE WITH REALLY FAST DINOSAURS.

>> WHO ARE ALMOST AS FAST AS BUDDY.

THEY'RE CALLED ORNA--ORNA-- >> ORNITHOMIMUS.

>> ORNITHOMIMUS, EH?

HUH, YOU'RE RIGHT.

THEY ARE FAST.

AND EITHER MY WATCH IS FAST, OR IT'S TIME FOR THE TIME TUNNEL.

TIME TUNNEL APPROACHING, FOLKS.

OH.

[BELL RINGS] [TRAIN HORN BLOWS] NEXT STOP, ORNITHOMIMUS CORNERS!

NOW, THE ORNITHOMIMUS DON'T JUST RUN FAST, THEY DO EVERYTHING FAST.

>> THEY DO.

LOOK.

>> WOW!

>> I CAN'T WAIT TO MEET ORNA--ORNA-- >> ORNITHOMIMUS.

>> YEAH, THOSE GUYS.

>> BYE!

>> DO YOU SEE ONE?

>> NO, BUT I THINK I SMELL HIM.

>> THEY MUST BE AROUND SOMEWHERE.

[BUDDY GASPS] >> HI, I'M ORN.

>> AND I'M OLLIE.

IF YOU PUT OUR NAMES TOGETHER, WE'RE ORN AND OLLIE.

WE'RE TWINS.

>> HI.

I'M TINY, AND THIS IS BUDDY, AND DON, AND MY MOM.

>> HELLO.

I'M MRS. PTERANODON.

>> HMM.

>> DO YOU SEE WHAT I SEE?

>> I DON'T KNOW.

DO YOU SEE 3 PTERANODONS AND A T. REX?

>> NOPE.

I SEE A T. REX AND 3 PTERANODONS.

HA HA HA HA HA!

>> OH, HELLO.

I'M MRS. ORNITHOMIMUS.

I SEE YOU'VE ALREADY MET MY SONS.

>> ORN AND OLLIE.

>> DO YOU LIKE IT WHEN WE'RE OVER HERE?

>> OR HERE?

>> BUT WE CAN BE HERE, TOO.

>> HA HA HA HA HA!

>> LOOK.

>> LOOK AT THAT.

>> LOOK.

>> WHOA!

>> YOU GUYS ARE TOO FAST FOR ME.

>> NOW, NOW, SLOW DOWN AND PLAY NICELY WHILE WE SHOW THESE NICE DINOSAURS AROUND ORNITHOMIMUS CORNERS.

>> HA HA HA HA.

>> UH--WAS THAT A YES?

>> THAT WAS DEFINITELY A YES.

>> HA HA HA HA HA.

>> HELLO?

ORN AND OLLIE?

>> DO YOU MEAN ME?

>> OR ME?

[LAUGHTER] >> WHOA.

I'VE NEVER SEEN ANYONE AS FAST AS YOU GUYS.

>> WELL, YOU MAY BE FAST, BUT YOU KNOW WHO'S REALLY FAST?

BUDDY!

>> AW, DON, I'M NOT THAT FAST.

>> I LOVE TO BE FAST.

>> AND I LOVE TO RACE.

>> SO, WANT TO RACE, JUST FOR FUN?

>> OF COURSE BUDDY WANTS TO RACE.

WAIT TILL YOU SEE HIM GO.

>> UM--DON, ACTUALLY, I REALLY DON'T-- >> GREAT!

RACE TO THAT TREE.

>> GULP.

>> AND THEN BACK HERE.

FIRST TO TOUCH TINY'S WING WINS!

>> ON YOUR MARK, GET SET, GO!

[GIGGLING] >> LAST ONE TO TOUCH MY WING IS A ROTTEN DINOSAUR EGG.

>> THAT DOESN'T SOUND GOOD.

[LAUGHING] >> AH!

[BUDDY LAUGHS] >> I KNOW.

LET'S TRY AGAIN.

>> SORRY, DON, BUT I'M NOT EVEN CLOSE TO BEING THE FASTEST DINOSAUR.

>> GOOD RACE!

NICE TRY!

HA HA HA HA.

>> YOU ORNITHOMIMUS ARE AMAZING.

SO WHY ARE YOU SO MUCH FASTER THAN US?

>> YEAH, WHY?

>> MAYBE BECAUSE YOUR HEADS ARE SMALLER AND YOUR TAILS ARE LONGER.

>> HMM.

COULD BE.

>> I HAVE A HYPOTHESIS.

I THINK YOU GUYS ARE FASTER BECAUSE YOUR LEGS ARE LONGER.

>> AND MAYBE YOUR LONG FEET.

>> THESE LONG GUYS?

GOOD HYPOTHESIS.

>> OH!

>> BUT, BUDDY, HOW COULD YOU TEST THAT HYPOTHESIS?

>> HMM.

>> I KNOW.

ANOTHER RACE!

>> DID SOMEBODY SAY "RACE"?

WHO WANTS TO RACE?

>> NOT ME.

JUST TALKING ABOUT ANOTHER RACE MAKES ME TIRED.

>> OK. HOW ABOUT YOU, BUDDY?

TINY?

>> WHAT IF WE DID IT AS A TEAM, BUDDY?

>> A TEAM?

>> ORN AND OLLIE ARE PARTNERS, SO I SHOULD GET A PARTNER, TOO.

BUDDY!

>> PARTNERS?

WE COULD DO A RELAY RACE.

>> OOH, YEAH, A RELAY RACE!

>> A RE WHAT RACE?

>> A RELAY RACE.

THE FIRST PARTNER RUNS HALF THE RACE, THEN TOUCHES THE OTHER PARTNER, AND HE RUNS THE SECOND HALF.

>> OH.

SO BUDDY RUNS, TOUCHES MY WING, AND THEN I RACE THE REST OF THE WAY?

DO YOU GUYS MIND IF I FLY?

>> NOT AT ALL.

>> FLY ALL YOU WANT.

>> OK, LET'S DO IT.

WE'LL RACE TO THAT--UH--THAT BIG ROCK DOWN THERE.

OLLIE, YOU AND TINY WAIT HALFWAY DOWN, WHERE THAT CROOKED TREE IS.

>> OK. COME ON, BUDDY.

I KNOW WE CAN WIN IF WE DO IT TOGETHER.

>> GO, TEAM PTERANODON!

>> WE NEED A HANDSHAKE LIKE THAT.

>> WELL, LET'S DO THIS.

GO, TEAM ORNITHOMIMUS!

HMM, IT'S GOOD, JUST NOT AS CATCHY.

>> OK, WE'RE READY!

GO ON, YOU DO THE COUNTDOWN!

>> RELAY RACERS, READY, SET, GO!

>> COME ON, BUDDY, RUN!

TOUCH MY WING!

>> HEE HEE HEE!

>> GO, TINY!

FLY FAST!

DON'T BE LAST!

YOU CAN WIN!

UH--I LIKE FISH!

>> TINY WINS BY A BEAK!

>> YAY!

>> BUDDY AND TINY WIN!

>> WHOO-HOO!

>> GOOD RACING, GUYS.

>> I KNOW.

IT WAS REALLY CLOSE.

>> NICE JOB!

>> SO, WE TESTED YOUR HYPOTHESIS.

WHAT DO YOU THINK, BUDDY?

>> HMM.

WELL, WHILE YOU WERE RUNNING AGAINST ME WITH YOUR LONG LEGS AND FEET, YOU WERE WINNING.

BUT THEN TINY FLEW WITH HER AMAZING WINGS, AND I THINK THAT'S HOW WE WON.

>> OK.

SO AS LONG AS IT'S A RUNNING RACE, WE ORNITHOMIMUS WOULD WIN?

>> RIGHT.

>> GOOD HYPOTHESIS.

[PTERANODON CALL] >> BUDDY, TINY, DON!

THE DINOSAUR TRAIN IS COMING.

TIME TO HEAD HOME.

>> ONE LAST RACE BACK TO THE STATION?

[ALL SIGH] >> SURE YOU CAN'T STAY FOR DINNER?

WE'RE GOING TO EAT THOSE BUSHES.

>> WELL, BUSHES--NOT MY FAVORITE.

>> AHEM.

>> BUT I'M SURE THEY'RE DELICIOUS.

>> OH, WE EAT LOTS OF THINGS, PLANTS AND MEAT.

>> YEAH, WE'RE OMNIVORES.

[TRAIN WHISTLE BLOWS] >> OH, THANKS SO MUCH FOR HAVING US OVER.

>> IT WAS LOVELY.

PLEASE COME AGAIN.

>> YEAH, AND RACE WITH US.

>> BUT WITH YOUR LEGS, NO FLYING.

>> BYE.

>> THAT WAS FUN!

>> YOU GUYS ARE FAST!

>> ALL ABOARD!

[BUDDY GASPS] >> HEY.

>> IT'S CALLED A RELAY RACE.

>> HUH?

OH, YEAH.

WHOA.

I AM SO CLOSE, BOY.

I'M FLYING AS FAST AS I CAN.

>> THEN YOU BETTER FLY HARDER, DAD.

>> WHOA.

OH, SHE'S RIGHT.

I'D BETTER FLY HARDER.

UNGH.

>> YEAH!

>> TINY WON!

>> HUH.

WHEW.

GO, TEAM PTERANODON.

[THUD] [ALL CHEER] >> HI, THERE.

I'M DR. SCOTT, THE PALEONTOLOGIST.

AND THIS IS ORNITHOMIMUS.

>> ORNITHOMIMUS.

>> ORNITHOMIMUS.

>> ORNITHOMIMUS.

>> THE MOST IMPORTANT THING TO KNOW ABOUT ORNITHOMIMUS IS THAT IT WAS REALLY FAST.

HEY, WHERE'D IT GO?

>> THERE IT IS.

>> IN FACT, SCIENTISTS THINK THAT ORNITHOMIMUS MAY HAVE BEEN ONE OF THE FASTEST DINOSAURS, EVER.

HOW COULD THEY RUN SO FAST?

WELL, FOR ONE THING, ORNITHOMIMUS WAS BIPEDAL, WHICH MEANS THAT IT MOVED AROUND ON ITS TWO BACK LEGS, AND THOSE BACK LEGS WERE VERY LONG--GREAT FOR RUNNING FAST.

CAN YOU THINK OF ANY BIPEDAL ANIMALS ALIVE TODAY?

>> KANGAROOS.

>> HUMANS.

>> YEP, KANGAROOS AND HUMANS--THAT IS, PEOPLE LIKE YOU AND ME--BOTH MOVE AROUND ON THEIR BACK LEGS.

BUT THERE IS ONE BIPEDAL ANIMAL, A BIG BIRD, THAT LOOKS A WHOLE LOT LIKE ORNITHOMIMUS.

>> OSTRICH.

>> EXACTLY.

THE OSTRICH AND ORNITHOMIMUS HAVE PLENTY IN COMMON.

BOTH HAVE A SMALL HEAD, A LONG NECK, AND STRONG LEGS.

AND THEY BOTH RAN REALLY FAST.

>> GO, OSTRICH!

>> MOST OF THE TIME, OSTRICHES CAN EASILY ESCAPE ANY PREDATORS TRYING TO CATCH THEM, AND ORNITHOMIMUS WAS PROBABLY THE SAME, OUTRUNNING MEAT EATERS LIKE T. REX.

WOW.

DON'T THINK I COULD RUN THAT FAST, BUT I'LL TRY.

KEEP WATCHING FOR MORE DINOSAUR DISCOVERIES.

CONDUCTOR.

TODAY, WE'RE GOING TO VISIT SOME TYRANNOSAURUS REX AND FIND OUT ABOUT THEIR TEETH.

SO COME ON ALONG WITH ME ON THE DINOSAUR TRAIN.

ALL ABOARD!

>> OK.

HERE'S THE RULES OF DINOSAUR HOPSCOTCH.

YOU STAND HERE AND TOSS YOUR STICK INTO A SQUARE, AND THEN HOP TO THE END LIKE THIS.

OK, TINY, IT'S YOUR TURN.

>> ♪ LA-DA-DEE-DUM ♪ TA-DA!

>> VERY GOOD, TINY.

BUT NOW YOU'RE SUPPOSED TO HOP ON THE OTHER FOOT.

OH, WELL, BETTER LUCK NEXT TIME.

>> YEAH, BUT YOU SAID-- >> OK, IT'S BUDDY'S TURN.

BUDDY?

[BUDDY MUMBLES] BUDDY, YOU TOSS YOUR STICK, YOU DON'T EAT IT.

>> YEAH.

SINCE WHEN DO CARNIVORES EAT HOPSCOTCH STICKS?

>> I DON'T KNOW.

MY TEETH ARE FEELING KIND OF ITCHY.

HUH?

MY TOOTH CAME OUT.

>> WHAT?

>> YOUR TOOTH?

>> DID IT HURT?

>> ONE MINUTE IT WAS IN MY MOUTH, NOW IT'S OUT.

WHAT HAPPENED?

WHY DID MY TOOTH FALL OUT?

>> GEE, BUDDY, I DON'T HAVE ANY TEETH, SO I DON'T KNOW ANYTHING ABOUT THEM.

IT'S SO COOL.

CAN I HOLD IT, BUDDY?

>> I KNOW WHY YOUR TOOTH CAME OUT.

IT'S OBVIOUS, BUDDY.

YOU SMILE TOO MUCH AND YOUR TEETH ARE JUST TIRED OUT.

>> THAT DOESN'T REALLY SOUND RIGHT, SHINY.

>> I GOT TO ASK MOM WHY I LOST A TOOTH.

>> HMM.

WELL, DON'T WORRY, BUDDY.

I'M SURE THERE'S A REASON WHY YOUR TOOTH CAME OUT.

>> BUT DON'T I NEED ALL MY TEETH?

>> WELL, SINCE WE'RE PTERANODONS, WE DON'T KNOW ABOUT TEETH.

>> THAT'S WHAT I TOLD HIM.

>> I SAID HE SMILES TOO MUCH.

>> BUT I KNOW SOMEONE WHO DOES KNOW ABOUT TEETH.

OUR FRIEND, DOLORES TYRANNOSAURUS.

>> HEY, YEAH.

SHE'S A T. REX LIKE ME.

>> WHY DON'T WE TAKE THE DINOSAUR TRAIN TO REXVILLE AND VISIT THEM?

>> WE CAN ASK THEM WHY MY TOOTH FELL OUT.

>> OOH, CAN I COME, TOO?

>> SURE YOU CAN.

>> I'LL STAY HOME WITH DAD.

>> AND DON WILL HELP ME FINISH MAKING UP NEW DINOSAUR HOPSCOTCH RULES.

>> MM-HMM, MM-HMM, MM-HMM.

WAIT, I WILL?

[PTERANODON CALLS] >> ALL ABOARD!

[TRAIN WHISTLE BLOWS] >> ♪ REXVILLE, REXVILLE GOING TO REXVILLE LA, LA-LA, LA-LA, LA-LA ♪ >> TICKETS.

TICKETS, PLEASE.

WELL, IF IT ISN'T MRS. PTERANODON AND TINY AND MY OLD BUDDY--BUDDY.

>> HELLO, MR.

CONDUCTOR.

>> HEY, WASN'T THERE ONE MORE TOOTH IN YOUR MOUTH THE LAST TIME YOU RODE THE DINOSAUR TRAIN?

>> YOU'RE RIGHT, MR.

CONDUCTOR.

I WAS CHEWING ON A STICK AND WIGGLING MY TOOTH THIS MORNING, AND IT JUST CAME RIGHT OUT, LIKE THIS.

AH!

ARE ALL MY TEETH GOING TO COME OUT?

>> I DON'T KNOW, BUDDY, BUT DON'T WORRY.

I SEE YOU'RE GOING TO REXVILLE STATION.

THE TYRANNOSAURUS THERE WILL KNOW WHAT'S GOING ON WITH YOUR TEETH.

>> THEY SURE WILL.

THAT'S WHY WE'RE GOING.

[CLOCK CHIMES HOUR] >> WHOOPS.

BACK TO WORK.

TIME TUNNEL!

TIME TUNNEL APPROACHING!

>> WHOA.

IT MAKES ME DIZZY.

>> IT MAKES ME DIZZY I'M IN A TIZZY MY TUMMY'S BUSY IT MAKES ME DIZZY [CONDUCTOR LAUGHS] >> I LIKE THE TIME TUNNEL, TOO, TINY.

[TRAIN WHISTLE BLOWS] REXVILLE STATION, NEXT STOP, FOLKS.

REXVILLE STATION IN ANOTHER PART OF THE CRETACEOUS TIME PERIOD.

BYE, PTERANODONS.

HOPE YOU FIND OUT ABOUT TYRANNOSAURUS TEETH.

>> BYE!

>> COME ON, KIDS, LET'S GO FIND DOLORES.

>> AND HER DAUGHTER ANNIE.

I WONDER IF SHE'S LOST ANY TEETH, TOO.

>> OOH, I LOVE THE FLOWERS HERE, MOM.

>> THEY'RE EVEN BIGGER AND MORE BEAUTIFUL IN THIS PART OF THE CRETACEOUS PERIOD.

>> YEAH.

REXVILLE IS A COOL PLACE.

[INHALES] AH.

SMELLS LIKE T. REXES, TOO.

FOLLOW ME.

[BUDDY SNIFFS] [RUSTLING] [TYRANNOSAURUS SNIFFS] >> OH, BUDDY!

OH, MY GOODNESS.

AND MRS. PTERANODON AND TINY.

HELLO.

>> DOLORES, IT'S SO GOOD TO SEE YOU.

SORRY TO DROP IN ON YOU LIKE THIS.

>> OH, DON'T WORRY A BIT.

LOVELY TO SEE YOU.

ANNIE, GET OUT HERE!

WE GOT COMPANY!

>> COMING, MOM!

BUDDY, TINY, MRS. PTERANODON!

>> YEAH.

>> SO, BUDDY, HOW'S IT GOING?

ARE YOU HAVING FUN BEING A T. REX?

>> I LOVE BEING A T. REX.

EXCEPT TODAY I'VE GOT A PROBLEM.

>> WHAT?

WHAT COULD POSSIBLY BE WRONG WITH BEING A T. REX?

>> I STARTED LOSING MY TEETH--TWO OF THEM.

>> THAT'S ONLY ONE, THOUGH.

>> DON'S GOT THE OTHER ONE.

HE ASKED ME IF HE COULD KEEP IT.

I THINK HE'S STARTING A COLLECTION.

[ANNIE LAUGHS] >> OH, BUDDY, YOU DON'T HAVE TO WORRY ABOUT LOSING YOUR TEETH.

ALL T. REXES LOSE THEIR TEETH.

>> THEY DO?

I MEAN, WE DO?

>> YEP, ALL THE TIME.

>> AND THEN WE GROW NEW ONES IN PLACE OF THE OLD ONES.

>> WOW!

REALLY?

>> YES, REALLY.

>> SAY "AH."

[FOGHORN BLOWS] >> AHH.

>> YEP.

LOOK, ANNIE.

>> SEE, TINY?

IF YOU LOOK WHERE BUDDY'S TEETH FELL OUT, YOU CAN SEE NEW TEETH JUST STARTING TO COME IN.

>> WHAT?

>> BUDDY, IT'S TRUE.

YOU'VE ALREADY GOT NEW TEETH.

>> REALLY?

>> YES!

>> REALLY, BUDDY.

I SEE THEM, TOO.

OH, THIS IS WONDERFUL NEWS, DOLORES.

>> NEW TEETH ARE GROWING IN, SO I WON'T LOSE ALL MY TEETH, AFTER ALL?

>> ♪ YOU'RE GROWING NEW TEETH YOU'RE GROWING NEW TEETH TEETHY, TEETHY TEETH ♪ WHOO-HOO!

>> BUT I'M CURIOUS.

WHY DOES THIS HAPPEN, AND HOW OFTEN?

>> WELL, OUR TEETH ARE GETTING REPLACED ALL THE TIME.

LOOK.

NEW ONES ARE READY TO COME IN BEHIND THE OLD ONES AS THEY GET WORN OUT.

>> AND OUR TEETH GET WORN OUT BECAUSE WE'RE ALWAYS CHEWING ON TOUGH MEAT AND BONES.

>> OOH, SPEAKING OF TOUGH MEAT AND BONES, I HAVEN'T INVITED YOU TO LUNCH.

ARE YOU HUNGRY?

>> WHAT ARE YOU HAVING?

>> OOH, ANNIE'S FAVORITE--CARRION.

>> CARRION?

MMM-MMM.

>> THAT MEANS DEAD MEAT.

DO WE HAVE TO EAT IT, MOM?

>> OH, THANKS, DOLORES, BUT TINY AND I EAT FISH, AND WE HAD A BIG BREAKFAST.

YOU T. REXES JUST DIG IN.

[CHOMPING] >> LOOK, MOM, NO HANDS.

I'M EATING MY CARRION T. REX STYLE.

>> OOH, EXCUSE ME--A BONE.

>> UGH.

>> MRS. TYRANNOSAURUS, WILL MY TEETH GROW AS BIG AS YOURS SOMEDAY?

>> THEY SURE WILL, ROWS OF THEM.

THEY'LL GET TO BE ABOUT THIS BIG.

>> WOW.

>> WHAT DO YOU HAVE TO DO TO KEEP THEM CLEAN?

>> HA, HA!

WE DON'T EVER HAVE TO DO A THING.

THE OLD ONES FALL OUT AND THE NEW ONES GROW IN.

IT'S WONDERFUL.

HA HA HA!

HA HA HA HA HA.

>> UGH.

BUDDY, I DIDN'T WANT TO MENTION IT, BUT, OOF.

HER BREATH SMELLS AWFUL.

>> I KNOW.

I HAVE A HYPOTHESIS ABOUT WHY IT SMELLS SO BAD.

>> YOU MEAN AN IDEA YOU CAN TEST?

>> YEP.

MY HYPOTHESIS IS MAYBE HER BREATH SMELLS BAD BECAUSE OF WHAT TYRANNOSAURS EAT.

DID MY BREATH SMELL BAD BEFORE I ATE THE CARRION?

>> UH, NO.

>> UGH.

BUT NOW THAT I'VE EATEN THE CARRION, HOW DOES MY BREATH SMELL?

>> UGH.

WELL, I MEAN--UM--OK, IT SMELLS JUST A LITTLE.

[TINY AND BUDDY LAUGH] >> I WAS RIGHT.

IT'S FROM WHAT WE ATE.

WHOA, LOOK, TINY.

A GROWN-UP T. REX TOOTH.

>> IT'S HUGE.

LOOK, IT HAS A KIND OF SHARP RIDGE ON THE SIDE.

LET'S BRING IT HOME FOR DON.

>> ROAR!

>> HEY, HEY, LET ME TRY, LET ME TRY.

ROAR!

[ALL LAUGH] >> ROAR, ROAR.

>> BYE, DOLORES!

BYE, ANNIE!

>> BYE, MRS. PTERANODON!

>> BYE, TINY AND BUDDY!

>> THANKS FOR TELLING ME ALL ABOUT MY TEETH.

I FEEL SO MUCH BETTER NOW.

>> GOOD, I'M GLAD.

SEE YOU AGAIN SOON.

>> NEXT TIME, BRING SHINY AND DON.

>> YEAH.

>> ALL ABOARD!

[TRAIN WHISTLE BLOWS] >> HEY, BUDDY, WHAT'S THAT YOU'RE EATING?

>> MOM SAYS IT'S A LEAF CALLED MINT.

>> SO WHY ARE YOU EATING A PLANT?

YOU'RE A CARNIVORE, SILLY.

>> WELL, IT'S SUPPOSED TO MAKE YOUR BREATH SMELL BETTER.

[TINY LAUGHS] >> OH, BUDDY, YOUR BREATH IS FINE.

>> ARE YOU SURE IT DOESN'T SMELL LIKE CARRION?

>> YES, I'M SURE.

>> BUDDY, MOM SAYS YOU LOST ANOTHER TOOTH ON THE TRAIN TODAY.

CAN I KEEP THAT ONE, TOO?

>> AND WE FOUND THIS.

HERE'S A GROWN-UP T. REX TOOTH FOR YOUR COLLECTION.

>> WHOA!

THANKS!

>> WOW!

NOW, THAT IS A TOOTH!

[DON LAUGHS] I CAN'T BELIEVE BUDDY'S GOING TO BE A GIANT T. REX SOMEDAY.

>> YEAH.

SOMEDAY, I'M GOING TO HAVE A MOUTH FULL OF THESE HUGE GIANT T. REX TEETH.

ROAR!

>> BUT YOU'LL BE REALLY NICE.

AND YOU'LL HAVE MINTY FRESH BREATH.

>> AH!

>> EW!

P-U!

EW, GET AWAY FROM ME.

>> ♪ T. REX ROAR!

I'M A TYRANNOSAURUS I'M THE BIGGEST CARNIVORE IN THE CRETACEOUS FOREST GOING TO GROW SOME GIANT LEGS GOING TO GROW ENORMOUS FEET AND STOMP AROUND AND GNASH MY TEETH AND EAT AND EAT AND EAT GOING TO ROMP AND STOMP AROUND THE BIGGEST DINOSAUR IN TOWN ROARING ROUND THE FOREST TYRANNOSAURUS REX ♪ HAH!

>> GET AWAY FROM ME, SMELLY MONSTER.

[LAUGHTER] >> HI, THERE.

I'M DR. SCOTT, THE PALEONTOLOGIST.

CAN YOU NAME WHAT KIND OF CREATURE BUDDY IS?

>> T. REX.

>> T. REX.

>> T. REX!

>> T. REXES LIKE BUDDY USE THEIR TEETH TO SLICE AND TEAR UP MEAT.

AND TYRANNOSAURUS HAD A LOT OF TEETH--ABOUT 60 OF THEM.

MOST KIDS, LIKE YOU, HAVE ONLY 20 TEETH.

>> EEE!

>> GRRR!

>> TYRANNOSAURUS HAD SOME OF THE LARGEST TEETH OF ANY MEAT-EATING DINOSAUR.

AND BELIEVE IT OR NOT, ITS TEETH KEPT FALLING OUT.

BUT THOSE LOST TEETH WERE ALWAYS REPLACED BY NEW TEETH.

CAN YOU THINK OF AN ANIMAL ALIVE TODAY THAT CONSTANTLY LOSES AND REPLACES ITS TEETH?

>> A SHARK.

>> RIGHT.

SHARKS ARE ALWAYS GROWING NEW TEETH JUST LIKE T. REX AND MOST OTHER DINOSAURS DID.

SO DON'T FORGET, SINCE YOU ONLY GET TWO SETS OF TEETH, YOU BETTER TAKE GOOD CARE OF THEM.

OK, REMEMBER, GET OUTSIDE, GET INTO NATURE, AND MAKE YOUR OWN DISCOVERIES.

>> DID♪ DINOSAUR TRAIN DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN DINOSAUR TRAIN WE'RE GOING TO RIDE THE DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ DINOSAUR TRAIN ♪ >> ♪ WE'RE GOING TO RIDE ♪ >> ♪ RIDE, RIDE, RIDE, RIDE ♪ >> ♪ THE DINOSAUR TRAIN ♪ [CAPTIONING MADE POSSIBLE BY THE JIM HENSON COMPANY]