WHO WILL WIN?
Crocodile
SNAP-HISSS
Parasaurolophus
TROOOOT
THE SETUP

Crocodile vs Parasaurolophus

Crocodile
Crocodile
Parasaurolophus
Parasaurolophus

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

Would they meet?

No. Crocodile and Parasaurolophus 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

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.

Corner B

Parasaurolophus

Parasaurolophus walkeri · A duckbill with a trombone on its head.

Parasaurolophus
Home
Late Cretaceous forests of western North America · Lived in North America long ago
Food
Plants
Group
Lives in a herd
Size
Parasaurolophus is huge.

Does not hunt.

The crest was a horn.

Nervy salad.

  • Parasaurolophus is huge and fast.
  • Plants ground by a dental battery — a whole chalkboard of replacement teeth.
  • Late Cretaceous North America.

Family: Other hadrosaurs: Edmontosaurus, Corythosaurus, and the duckbill crowd.

TO SCALE!

SIZE & WEIGHT

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

1.70 m

Grown-up

0.70 m

Crocodile to scale

Crocodile

3.2 m

Parasaurolophus to scale

Parasaurolophus

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

Crocodile500 kg

Can stretch longer than a pickup truck.

Parasaurolophus2,500 kg

About as heavy as a rhinoceros, with a head-crest as long as a baseball bat.

Crocodile

0.70 m · 500 kg

Crocodile is big. 500 kg.

Parasaurolophus

3.2 m · 2,500 kg

Parasaurolophus is huge. 2,500 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: The planet's hardest chomp
  • Armor: Bony osteoderm shield
  • Senses: Pressure sensors in the skin feel a ripple.

Crocodile · labeled field diagram

  • Weapon: Herd, kick, and a honk
  • Armor: Duckbill battery
  • Senses: The crest was a horn.

Parasaurolophus · labeled field diagram

Crocodile3700 psi bite
Parasaurolophus200 psi bite

Crocodile

The planet's hardest chomp

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

Parasaurolophus

Herd, kick, and a honk

Tool: herd, kick, and a honk. Bite: 200 psi.

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

Whose tools would you trust?

ZOOM!

SPEED

Who gets there first?

Crocodile
32 km/h
Parasaurolophus
40 km/h
Crocodile32 km/h
Parasaurolophus40 km/h

Crocodile

32 km/h

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

Parasaurolophus

40 km/h

Parasaurolophus can go 40 km/h. That is 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
CrocodileParasaurolophusBoth

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

Crocodile

This is home · Lives in Africa

Crocodile lives in places like river country.

Parasaurolophus

This is home · Lived in North America long ago

Parasaurolophus lives in places like river country.

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

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Crocodile
Meat · Wait like a log.
Parasaurolophus
Plants · Does not hunt.

Crocodile

Meat · Wait like a log.

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

Parasaurolophus

Plants · Does not hunt.

Plants ground by a dental battery — a whole chalkboard of replacement teeth.

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.

Crocodile
Lives alone
Parasaurolophus
Lives in a herd
Crocodile8 grit /10
Parasaurolophus5 grit /10

Crocodile

Lives alone

Explosive from zero. Grit: 8/10.

Parasaurolophus

Lives in a herd

Nervy salad. Grit: 5/10.

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?

Crocodile
4/10
Parasaurolophus
4/10
Crocodile4 brains /10
Parasaurolophus4 brains /10

Crocodile

4/10

Pressure sensors in the skin feel a ripple.

Parasaurolophus

4/10

The crest was a horn.

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

Who would you score for noticing?

COUSINS!

FAMILY

Who are they related to?

Crocodile
Crocodylus niloticus
Parasaurolophus
Parasaurolophus walkeri

Crocodile

Crocodylus niloticus

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

Parasaurolophus

Parasaurolophus walkeri

Other hadrosaurs: Edmontosaurus, Corythosaurus, and the duckbill crowd.

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?

Crocodile
Death-Roll Remix
Parasaurolophus
Crest Trombone Blast

Crocodile

Death-Roll Remix

If it grabs you, it spins.

Parasaurolophus

Crest Trombone Blast

Air through the hollow crest probably made a low honk.

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: Crocodile 0 · Parasaurolophus 0 · still open 8

Who wins the meeting?

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

WHAM!

THEY MEET

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

Pretend · fact-based · not a gore-fest

WHOOSH!

THE TOOLS SHOW UP

Parasaurolophus is heavier. Crocodile uses the planet's hardest chomp. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

ZING!

SPECIAL MOVES

Crocodile tries the Death-Roll Remix. Parasaurolophus tries the Crest Trombone Blast. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

Crocodile!

A SQUEAKER

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

On river country, Crocodile wins. Crocodile's the planet's hardest chomp helps more. Parasaurolophus 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: Crocodile 5 · Parasaurolophus 2 · ties 1.

Your card: Crocodile 0 · Parasaurolophus 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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