WHO WILL WIN?
Spinosaurus
CROCO-RAAWR
Rattlesnake
CHK-CHK-BUZZ
THE SETUP

Spinosaurus vs Rattlesnake

Spinosaurus
Spinosaurus
Rattlesnake
Rattlesnake

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

Would they meet?

No. Spinosaurus and Rattlesnake 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

Rattlesnake

Crotalus atrox · A desert alarm clock with a noisy tail.

Rattlesnake
Home
North American deserts · Lives in North America
Food
Meat
Group
Lives alone
Size
Rattlesnake is tiny.

Sit, rattle, strike.

Heat pits are infrared goggles.

Would rather be left alone.

  • Rattlesnake is tiny and slow.
  • Mice, rats, rabbits — small warm snacks of the desert.
  • Rocks, brush, and sunny ledges where a coil can stay toasty.

Family: Other pit vipers, including copperheads.

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

0.15 m

Rattlesnake to scale

Rattlesnake

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.

Rattlesnake2 kg

About as heavy as a water bottle, louder than a snack bag.

Spinosaurus

2.8 m · 7,000 kg

Spinosaurus is giant. 7,000 kg.

Rattlesnake

0.15 m · 2 kg

Rattlesnake is tiny. 2 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: Hinged venom fangs
  • Armor: Rattle warning
  • Senses: Heat pits are infrared goggles.

Rattlesnake · labeled field diagram

Spinosaurus2000 psi bite
Rattlesnake80 psi bite

Spinosaurus

Croc-snout plus canoe claws

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

Rattlesnake

Hinged venom fangs

Tool: hinged venom fangs. Bite: 80 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
Rattlesnake
8 km/h
Spinosaurus18 km/h
Rattlesnake8 km/h

Spinosaurus

18 km/h

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

Rattlesnake

8 km/h

Rattlesnake can go 8 km/h. That is slow.

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

Who takes the speed card?

HOME MAP!

HOME

They meet in the desert. Who is built for this place?

N. AmericaS. AmericaEuropeAfricaAsiaAustraliaAntarctica
SpinosaurusRattlesnakeBoth

Meeting biome: the desert. Colored land is fossil range for dinosaurs and living range for zoo animals.

Spinosaurus

Wrong place · Lived in Africa long ago

Spinosaurus's home is the mid-cretaceous rivers of north africa, not the desert.

Rattlesnake

This is home · Lives in North America

Rattlesnake lives in places like the desert.

No. Spinosaurus and Rattlesnake 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.
Rattlesnake
Meat · Sit, rattle, strike.

Spinosaurus

Meat · River specialist.

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

Rattlesnake

Meat · Sit, rattle, strike.

Mice, rats, rabbits — small warm snacks of the desert.

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
Rattlesnake
Lives alone
Spinosaurus7 grit /10
Rattlesnake7 grit /10

Spinosaurus

Lives alone

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

Rattlesnake

Lives alone

Would rather be left alone. Grit: 7/10.

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
Rattlesnake
4/10
Spinosaurus4 brains /10
Rattlesnake4 brains /10

Spinosaurus

4/10

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

Rattlesnake

4/10

Heat pits are infrared goggles.

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
Rattlesnake
Crotalus atrox

Spinosaurus

Spinosaurus aegyptiacus

Other spinosaurids like Baryonyx and Suchomimus.

Rattlesnake

Crotalus atrox

Other pit vipers, including copperheads.

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
Rattlesnake
Buzz Then Zap

Spinosaurus

River-Ambush Paddle

Spinosaurus was built to hunt in rivers.

Rattlesnake

Buzz Then Zap

First the concert.

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 · Rattlesnake 0 · still open 8

Who wins the meeting?

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

THWACK!

THEY MEET

Spinosaurus runs first. Rattlesnake does not race. They wait in the desert.

Pretend · fact-based · not a gore-fest

SLAM!

THE TOOLS SHOW UP

Spinosaurus is heavier. Rattlesnake uses hinged venom fangs. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

POW!

SPECIAL MOVES

Spinosaurus tries the River-Ambush Paddle. Rattlesnake tries the Buzz Then Zap. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

Spinosaurus!

A STOMP

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

On the desert, Spinosaurus wins. Spinosaurus is a lot heavier. Rattlesnake 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 5 · Rattlesnake 1 · ties 2.

Your card: Spinosaurus 0 · Rattlesnake 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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