WHO WILL WIN?
T. rex
RAAWR
Crocodile
SNAP-HISSS
THE SETUP

T. rex vs Crocodile

T. rex
T. rex
Crocodile
Crocodile

Pretend they meet in river country. Dinosaurs lived long ago. Look at the facts. Then you pick.

Would they meet?

No. T. rex and Crocodile did not live at the same time. This meeting is pretend.

This is pretend and based on facts. Real animals usually hide or leave.

Read the facts. Make your card. The page waits to pick.

Corner A

T. rex

Tyrannosaurus rex · The banana-toothed bone cruiser.

T. rex
Home
Late Cretaceous floodplains of western North America · Lived in North America long ago
Food
Meat
Group
Lives alone
Size
T. rex is giant.

Giant bite-and-pull hunter.

A huge smelling system and eyes that faced more forward than most dinosaurs.

Top of a vanished food web.

  • T. rex is giant and not very fast.
  • Horned dinosaurs, duckbills, leftover carcasses — a giant meat-eater that did not skip free calories.
  • Fossils come from places like Hell Creek: forests, rivers, and floodplains about 66 million years ago.

Family: Birds!

Corner B

Crocodile

Crocodylus niloticus · A living fossil with a trapdoor mouth.

Crocodile
Home
African rivers · Lives in Africa
Food
Meat
Group
Lives alone
Size
Crocodile is big.

Wait like a log.

Pressure sensors in the skin feel a ripple.

Explosive from zero.

  • Crocodile is big and not very fast.
  • Fish, mammals, birds — if it comes to the water's edge, it is on the menu.
  • They wait like logs.

Family: Alligators, caimans, and dinosaurs' old roommates, the archosaurs.

TO SCALE!

SIZE & WEIGHT

Stand them next to a grown-up. Who is bigger and heavier?

1.70 m

Grown-up

3.7 m

T. rex to scale

T. rex

0.70 m

Crocodile to scale

Crocodile

Height to scale. A grown-up is 1.7 m.

T. rex8,200 kg

Hip-tall as a basketball hoop, heavier than an African elephant, longer than a school bus.

Crocodile500 kg

Can stretch longer than a pickup truck.

T. rex

3.7 m · 8,200 kg

T. rex is giant. 8,200 kg.

Crocodile

0.70 m · 500 kg

Crocodile is big. 500 kg.

Kilograms are honest. A small animal can still have a strong tool.

Who would you pick for size?

TOOLKIT!

TOOLS

Teeth, claws, horns, venom, kick — what tools do they have?

  • Weapon: Banana-sized bone shears
  • Armor: Thick skull and a neck like a crane
  • Senses: A huge smelling system and eyes that faced more forward than most dinosaurs.

T. rex · labeled field diagram

  • Weapon: The planet's hardest chomp
  • Armor: Bony osteoderm shield
  • Senses: Pressure sensors in the skin feel a ripple.

Crocodile · labeled field diagram

T. rex8000 psi bite
Crocodile3700 psi bite

T. rex

Banana-sized bone shears

Tool: banana-sized bone shears. Bite: 8,000 psi.

Crocodile

The planet's hardest chomp

Tool: the planet's hardest chomp. Bite: 3,700 psi.

A bite number is only one tool. Coils and kicks count too.

Whose tools would you trust?

ZOOM!

SPEED

Who gets there first?

T. rex
20 km/h
Crocodile
32 km/h
T. rex20 km/h
Crocodile32 km/h

T. rex

20 km/h

T. rex can go 20 km/h. That is not very fast.

Crocodile

32 km/h

Crocodile can go 32 km/h. That is not very fast.

A fast animal can miss. A slow one only has to connect.

Who takes the speed card?

HOME MAP!

HOME

They meet in river country. Who is built for this place?

N. AmericaS. AmericaEuropeAfricaAsiaAustraliaAntarctica
T. rexCrocodileBoth

Meeting biome: river country. Colored land is fossil range for dinosaurs and living range for zoo animals.

T. rex

Can handle it · Lived in North America long ago

T. rex's home is the late cretaceous floodplains of western north america, not river country.

Crocodile

This is home · Lives in Africa

Crocodile lives in places like river country.

No. T. rex and Crocodile did not live at the same time. This meeting is pretend.

Who gets the home point?

MENU!

FOOD

How do they get lunch?

T. rex
Meat · Giant bite-and-pull hunter.
Crocodile
Meat · Wait like a log.

T. rex

Meat · Giant bite-and-pull hunter.

Horned dinosaurs, duckbills, leftover carcasses — a giant meat-eater that did not skip free calories.

Crocodile

Meat · Wait like a log.

Fish, mammals, birds — if it comes to the water's edge, it is on the menu.

A plant eater is not 'safe.' Hippos and elephants still end arguments.

Whose hunting or defending helps more?

MOOD!

MOOD

Alone vs team. This rumble is one vs one.

T. rex
Lives alone
Crocodile
Lives alone
T. rex9 grit /10
Crocodile8 grit /10

T. rex

Lives alone

Top of a vanished food web. Grit: 9/10.

Crocodile

Lives alone

Explosive from zero. Grit: 8/10.

Pack and pride animals lose their backup in a 1-v-1.

Who is better for a solo meeting?

PING!

BRAINS

Who notices first and thinks next?

T. rex
5/10
Crocodile
4/10
T. rex5 brains /10
Crocodile4 brains /10

T. rex

5/10

A huge smelling system and eyes that faced more forward than most dinosaurs.

Crocodile

4/10

Pressure sensors in the skin feel a ripple.

In the wild, brains often mean leave before it starts.

Who would you score for noticing?

COUSINS!

FAMILY

Who are they related to?

T. rex
Tyrannosaurus rex
Crocodile
Crocodylus niloticus

T. rex

Tyrannosaurus rex

Birds!

Crocodile

Crocodylus niloticus

Alligators, caimans, and dinosaurs' old roommates, the archosaurs.

Cousins are clues, not a score.

Not a fight point. Who has the wilder family story?

WILD CARD!

SPECIAL

What special move did they evolve?

T. rex
Bone-Crunch Clamp
Crocodile
Death-Roll Remix

T. rex

Bone-Crunch Clamp

T.

Crocodile

Death-Roll Remix

If it grabs you, it spins.

A secret move here is a real wild tool, not a video-game combo.

Whose special move would change the meeting?

YOUR SCORECARD

Your scorecard

Tap who has each fact. Then tap who you think wins.

  • SIZE & WEIGHT

  • TOOLS

  • SPEED

  • HOME

  • FOOD

  • MOOD

  • BRAINS

  • SPECIAL

Your card: T. rex 0 · Crocodile 0 · still open 8

Who wins the meeting?

Keep going for the pretend meeting, then the science pick.

SKREEE!

THEY MEET

Crocodile runs first. T. rex does not race. They wait in river country.

Pretend · fact-based · not a gore-fest

CHOMP!

THE TOOLS SHOW UP

T. rex is heavier. Crocodile uses the planet's hardest chomp. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

SNAP!

SPECIAL MOVES

T. rex tries the Bone-Crunch Clamp. Crocodile tries the Death-Roll Remix. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

T. rex!

A STOMP

You skipped a final pick. The facts still stamp a champ.

On river country, T. rex wins. T. rex is a lot heavier. Crocodile would still win some meetings at home.

In the wild, most animals skip a fight. We still judge who the bodies and the place would favor.

Science card: T. rex 3 · Crocodile 2 · ties 3.

Your card: T. rex 0 · Crocodile 0.

The last page follows the whole animal — body plus home — not one bar chart.

Send this fight

A friend can read the same facts.

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