WHO WILL WIN?
Spinosaurus
CROCO-RAAWR
Brachiosaurus
HOOOOONK
THE SETUP

Spinosaurus vs Brachiosaurus

Spinosaurus
Spinosaurus
Brachiosaurus
Brachiosaurus

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

Would they meet?

No. Spinosaurus lived in long ago. Brachiosaurus lived in long ago. Pretend meeting.

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

Brachiosaurus

Brachiosaurus altithorax · A living watchtower that ate the upstairs leaves.

Brachiosaurus
Home
Late Jurassic woodlands of western North America · Lived in North America long ago
Food
Plants
Group
Lives in a herd
Size
Brachiosaurus is giant.

Does not hunt.

A watchtower head.

Calm until it steps.

  • Brachiosaurus is giant and slow.
  • High browse: conifers and other tall plants.
  • Late Jurassic North America, sharing the Morrison world with Allosaurus and Stegosaurus.

Family: Other sauropods: Giraffatitan (the African look-alike), Camarasaurus, and the whole long-neck family.

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

12.0 m

Brachiosaurus to scale

Brachiosaurus

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.

Brachiosaurus35,000 kg

Head as high as a four-story building. Heavier than four African elephants stacked in a science dream.

Spinosaurus

2.8 m · 7,000 kg

Spinosaurus is giant. 7,000 kg.

Brachiosaurus

12.0 m · 35,000 kg

Brachiosaurus is giant. 35,000 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: Column legs plus a neck crane
  • Armor: A body the size of a house
  • Senses: A watchtower head.

Brachiosaurus · labeled field diagram

Spinosaurus2000 psi bite
Brachiosaurus80 psi bite

Spinosaurus

Croc-snout plus canoe claws

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

Brachiosaurus

Column legs plus a neck crane

Tool: column legs plus a neck crane. 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
Brachiosaurus
10 km/h
Spinosaurus18 km/h
Brachiosaurus10 km/h

Spinosaurus

18 km/h

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

Brachiosaurus

10 km/h

Brachiosaurus can go 10 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 grassland. Who is built for this place?

N. AmericaS. AmericaEuropeAfricaAsiaAustraliaAntarctica
SpinosaurusBrachiosaurusBoth

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

Spinosaurus

Not their home · Lived in Africa long ago

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

Brachiosaurus

This is home · Lived in North America long ago

Brachiosaurus lives in places like grassland.

No. Spinosaurus lived in long ago. Brachiosaurus lived in long ago. Pretend meeting.

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Spinosaurus
Meat · River specialist.
Brachiosaurus
Plants · Does not hunt.

Spinosaurus

Meat · River specialist.

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

Brachiosaurus

Plants · Does not hunt.

High browse: conifers and other tall plants.

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
Brachiosaurus
Lives in a herd
Spinosaurus7 grit /10
Brachiosaurus6 grit /10

Spinosaurus

Lives alone

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

Brachiosaurus

Lives in a herd

Calm until it steps. Grit: 6/10.

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
Brachiosaurus
2/10
Spinosaurus4 brains /10
Brachiosaurus2 brains /10

Spinosaurus

4/10

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

Brachiosaurus

2/10

A watchtower head.

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
Brachiosaurus
Brachiosaurus altithorax

Spinosaurus

Spinosaurus aegyptiacus

Other spinosaurids like Baryonyx and Suchomimus.

Brachiosaurus

Brachiosaurus altithorax

Other sauropods: Giraffatitan (the African look-alike), Camarasaurus, and the whole long-neck family.

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
Brachiosaurus
Sky-Salad Stomp

Spinosaurus

River-Ambush Paddle

Spinosaurus was built to hunt in rivers.

Brachiosaurus

Sky-Salad Stomp

It did not need fangs.

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 · Brachiosaurus 0 · still open 8

Who wins the meeting?

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

FWOOSH!

THEY MEET

Spinosaurus runs first. Brachiosaurus does not race. They wait in grassland.

Pretend · fact-based · not a gore-fest

KICK!

THE TOOLS SHOW UP

Brachiosaurus is heavier. Spinosaurus uses croc-snout plus canoe claws. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

STOOMP!

SPECIAL MOVES

Spinosaurus tries the River-Ambush Paddle. Brachiosaurus tries the Sky-Salad Stomp. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

Brachiosaurus!

A CLEAR PICK · UNDERDOG

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

On grassland, Brachiosaurus wins. Brachiosaurus likes grassland more. Spinosaurus 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 4 · Brachiosaurus 2 · ties 2.

Your card: Spinosaurus 0 · Brachiosaurus 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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