WHO WILL WIN?
Spinosaurus
CROCO-RAAWR
Jaguar
UH-UH-GRUNT
THE SETUP

Spinosaurus vs Jaguar

Spinosaurus
Spinosaurus
Jaguar
Jaguar

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

Would they meet?

No. Spinosaurus and Jaguar 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

Spinosaurus

Spinosaurus aegyptiacus · A sail-backed river hunter longer than a bus.

Spinosaurus
Home
Mid-Cretaceous rivers of North Africa · Lived in Africa long ago
Food
Meat
Group
Lives alone
Size
Spinosaurus is giant.

River specialist.

A snout that may have sensed pressure in water, like a crocodile's face.

Boss of a Cretaceous river.

  • Spinosaurus is giant and not very fast.
  • Giant fish, and probably other animals that came to drink.
  • Cretaceous North Africa, about 95 million years ago — rivers and mangrove-ish coasts, not the Serengeti.

Family: Other spinosaurids like Baryonyx and Suchomimus.

Corner B

Jaguar

Panthera onca · The skull-cracker of the rainforest.

Jaguar
Home
Amazon rainforest · Lives in South America / North America
Food
Meat
Group
Lives alone
Size
Jaguar is medium.

Skull-bite hunter.

Water-and-forest eyes.

Power in a compact cat.

  • Jaguar is medium and fast.
  • Capybara, deer, fish, caimans — the menu is the whole forest.
  • Rivers and dense jungle.

Family: Leopards look similar.

TO SCALE!

SIZE & WEIGHT

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

1.70 m

Grown-up

2.8 m

Spinosaurus to scale

Spinosaurus

0.75 m

Jaguar to scale

Jaguar

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

Spinosaurus7,000 kg

Longer than T. rex, maybe as long as a city bus, with a sail that could top a doorway.

Jaguar95 kg

Heavier than a leopard, shorter than a tiger, meaner at the dentist.

Spinosaurus

2.8 m · 7,000 kg

Spinosaurus is giant. 7,000 kg.

Jaguar

0.75 m · 95 kg

Jaguar is medium. 95 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: Croc-snout plus canoe claws
  • Armor: Sail and dense bones
  • Senses: A snout that may have sensed pressure in water, like a crocodile's face.

Spinosaurus · labeled field diagram

  • Weapon: Bone-piercing bite
  • Armor: Stocky muscle coat
  • Senses: Water-and-forest eyes.

Jaguar · labeled field diagram

Spinosaurus2000 psi bite
Jaguar1500 psi bite

Spinosaurus

Croc-snout plus canoe claws

Tool: croc-snout plus canoe claws. Bite: 2,000 psi.

Jaguar

Bone-piercing bite

Tool: bone-piercing bite. Bite: 1,500 psi.

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

Whose tools would you trust?

ZOOM!

SPEED

Who gets there first?

Spinosaurus
18 km/h
Jaguar
50 km/h
Spinosaurus18 km/h
Jaguar50 km/h

Spinosaurus

18 km/h

Spinosaurus can go 18 km/h. That is not very fast.

Jaguar

50 km/h

Jaguar can go 50 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
SpinosaurusJaguarBoth

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

Spinosaurus

This is home · Lived in Africa long ago

Spinosaurus lives in places like river country.

Jaguar

This is home · Lives in South America / North America

Jaguar lives in places like river country.

No. Spinosaurus and Jaguar did not live at the same time. This meeting is pretend.

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Spinosaurus
Meat · River specialist.
Jaguar
Meat · Skull-bite hunter.

Spinosaurus

Meat · River specialist.

Giant fish, and probably other animals that came to drink.

Jaguar

Meat · Skull-bite hunter.

Capybara, deer, fish, caimans — the menu is the whole forest.

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.

Spinosaurus
Lives alone
Jaguar
Lives alone
Spinosaurus7 grit /10
Jaguar8 grit /10

Spinosaurus

Lives alone

Boss of a Cretaceous river. Grit: 7/10.

Jaguar

Lives alone

Power in a compact cat. 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?

Spinosaurus
4/10
Jaguar
7/10
Spinosaurus4 brains /10
Jaguar7 brains /10

Spinosaurus

4/10

A snout that may have sensed pressure in water, like a crocodile's face.

Jaguar

7/10

Water-and-forest eyes.

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

Who would you score for noticing?

COUSINS!

FAMILY

Who are they related to?

Spinosaurus
Spinosaurus aegyptiacus
Jaguar
Panthera onca

Spinosaurus

Spinosaurus aegyptiacus

Other spinosaurids like Baryonyx and Suchomimus.

Jaguar

Panthera onca

Leopards look similar.

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?

Spinosaurus
River-Ambush Paddle
Jaguar
River Skull Clamp

Spinosaurus

River-Ambush Paddle

Spinosaurus was built to hunt in rivers.

Jaguar

River Skull Clamp

They love water.

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: Spinosaurus 0 · Jaguar 0 · still open 8

Who wins the meeting?

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

SKREEE!

THEY MEET

Jaguar runs first. Spinosaurus does not race. They wait in river country.

Pretend · fact-based · not a gore-fest

CHOMP!

THE TOOLS SHOW UP

Spinosaurus is heavier. Jaguar uses bone-piercing bite. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

SNAP!

SPECIAL MOVES

Spinosaurus tries the River-Ambush Paddle. Jaguar tries the River Skull Clamp. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

Spinosaurus!

A STOMP · UNDERDOG

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

On river country, Spinosaurus wins. Spinosaurus is a lot heavier. Jaguar 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: Spinosaurus 2 · Jaguar 3 · ties 3.

Your card: Spinosaurus 0 · Jaguar 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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