WHO WILL WIN?
Carnotaurus
SNARL-HORN
Brachiosaurus
HOOOOONK
THE SETUP

Carnotaurus vs Brachiosaurus

Carnotaurus
Carnotaurus
Brachiosaurus
Brachiosaurus

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

Would they meet?

No. Carnotaurus 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

Carnotaurus

Carnotaurus sastrei · Bull horns, tiny arms, and a sprinter's tail.

Carnotaurus
Home
Late Cretaceous plains of Patagonia · Lived in South America long ago
Food
Meat
Group
Lives alone
Size
Carnotaurus is huge.

Sprint hunter of Patagonia.

A runner's kit: look, chase, bite.

A bull-headed sprinter.

  • Carnotaurus is huge and fast.
  • Medium plant-eaters on South American plains.
  • Late Cretaceous Argentina.

Family: Abelisaurids like Abelisaurus and Majungasaurus.

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

2.5 m

Carnotaurus to scale

Carnotaurus

12.0 m

Brachiosaurus to scale

Brachiosaurus

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

Carnotaurus1,400 kg

About as heavy as a small car, hip-tall as a doorway, with horns a bull would respect.

Brachiosaurus35,000 kg

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

Carnotaurus

2.5 m · 1,400 kg

Carnotaurus is huge. 1,400 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: Horned skull plus a meat-slicer jaw
  • Armor: Bumpy hide
  • Senses: A runner's kit: look, chase, bite.

Carnotaurus · 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

Carnotaurus1500 psi bite
Brachiosaurus80 psi bite

Carnotaurus

Horned skull plus a meat-slicer jaw

Tool: horned skull plus a meat-slicer jaw. Bite: 1,500 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?

Carnotaurus
48 km/h
Brachiosaurus
10 km/h
Carnotaurus48 km/h
Brachiosaurus10 km/h

Carnotaurus

48 km/h

Carnotaurus can go 48 km/h. That is 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
CarnotaurusBrachiosaurusBoth

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

Carnotaurus

This is home · Lived in South America long ago

Carnotaurus lives in places like grassland.

Brachiosaurus

This is home · Lived in North America long ago

Brachiosaurus lives in places like grassland.

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

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Carnotaurus
Meat · Sprint hunter of Patagonia.
Brachiosaurus
Plants · Does not hunt.

Carnotaurus

Meat · Sprint hunter of Patagonia.

Medium plant-eaters on South American plains.

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.

Carnotaurus
Lives alone
Brachiosaurus
Lives in a herd
Carnotaurus7 grit /10
Brachiosaurus6 grit /10

Carnotaurus

Lives alone

A bull-headed sprinter. 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?

Carnotaurus
4/10
Brachiosaurus
2/10
Carnotaurus4 brains /10
Brachiosaurus2 brains /10

Carnotaurus

4/10

A runner's kit: look, chase, bite.

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?

Carnotaurus
Carnotaurus sastrei
Brachiosaurus
Brachiosaurus altithorax

Carnotaurus

Carnotaurus sastrei

Abelisaurids like Abelisaurus and Majungasaurus.

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?

Carnotaurus
Patagonia Sprint Horns
Brachiosaurus
Sky-Salad Stomp

Carnotaurus

Patagonia Sprint Horns

The tail and legs look built for speed.

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: Carnotaurus 0 · Brachiosaurus 0 · still open 8

Who wins the meeting?

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

SKREEE!

THEY MEET

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

Pretend · fact-based · not a gore-fest

CHOMP!

THE TOOLS SHOW UP

Brachiosaurus is heavier. Carnotaurus uses horned skull plus a meat-slicer jaw. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

SNAP!

SPECIAL MOVES

Carnotaurus tries the Patagonia Sprint Horns. 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 STOMP · UNDERDOG

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

On grassland, Brachiosaurus wins. Brachiosaurus is a lot heavier. Carnotaurus 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: Carnotaurus 4 · Brachiosaurus 3 · ties 1.

Your card: Carnotaurus 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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