WHO WILL WIN?
Kangaroo
THUMP-CHUFF
Brachiosaurus
HOOOOONK
THE SETUP

Kangaroo vs Brachiosaurus

Kangaroo
Kangaroo
Brachiosaurus
Brachiosaurus

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

Would they meet?

No. Kangaroo and Brachiosaurus 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

Kangaroo

Macropus rufus · Boxing champ with built-in trampolines.

Kangaroo
Home
Australian outback · Lives in Australia
Food
Plants
Group
Lives in a herd
Size
Kangaroo is medium.

Grazer.

Ears swivel like radar dishes.

Looks chill.

  • Kangaroo is medium and very fast.
  • Grasses and shrubs.
  • Open outback, where hopping beats walking by a kilometer.

Family: Wallabies, tree-kangaroos, and other marsupial hoppers.

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

1.80 m

Kangaroo to scale

Kangaroo

12.0 m

Brachiosaurus to scale

Brachiosaurus

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

Kangaroo90 kg

Can stand face-to-face with a grown-up — then bounce over them.

Brachiosaurus35,000 kg

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

Kangaroo

1.80 m · 90 kg

Kangaroo is medium. 90 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: Spring-loaded kick
  • Armor: Tail tripod
  • Senses: Ears swivel like radar dishes.

Kangaroo · 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

Kangaroo200 psi bite
Brachiosaurus80 psi bite

Kangaroo

Spring-loaded kick

Tool: spring-loaded kick. Bite: 200 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?

Kangaroo
70 km/h
Brachiosaurus
10 km/h
Kangaroo70 km/h
Brachiosaurus10 km/h

Kangaroo

70 km/h

Kangaroo can go 70 km/h. That is 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
KangarooBrachiosaurusBoth

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

Kangaroo

This is home · Lives in Australia

Kangaroo lives in places like grassland.

Brachiosaurus

This is home · Lived in North America long ago

Brachiosaurus lives in places like grassland.

No. Kangaroo and Brachiosaurus did not live at the same time. This meeting is pretend.

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Kangaroo
Plants · Grazer.
Brachiosaurus
Plants · Does not hunt.

Kangaroo

Plants · Grazer.

Grasses and shrubs.

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.

Kangaroo
Lives in a herd
Brachiosaurus
Lives in a herd
Kangaroo7 grit /10
Brachiosaurus6 grit /10

Kangaroo

Lives in a herd

Looks chill. 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?

Kangaroo
6/10
Brachiosaurus
2/10
Kangaroo6 brains /10
Brachiosaurus2 brains /10

Kangaroo

6/10

Ears swivel like radar dishes.

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?

Kangaroo
Macropus rufus
Brachiosaurus
Brachiosaurus altithorax

Kangaroo

Macropus rufus

Wallabies, tree-kangaroos, and other marsupial hoppers.

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?

Kangaroo
Hop-Box Combo
Brachiosaurus
Sky-Salad Stomp

Kangaroo

Hop-Box Combo

They lean back on the tail and kick with both feet.

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: Kangaroo 0 · Brachiosaurus 0 · still open 8

Who wins the meeting?

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

WHAM!

THEY MEET

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

Pretend · fact-based · not a gore-fest

WHOOSH!

THE TOOLS SHOW UP

Brachiosaurus is heavier. Kangaroo uses spring-loaded kick. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

ZING!

SPECIAL MOVES

Kangaroo tries the Hop-Box Combo. 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. Kangaroo 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: Kangaroo 5 · Brachiosaurus 2 · ties 1.

Your card: Kangaroo 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.

Also starring · Kangaroo

Grampians kangaroos. Bounce first, argue later.

Isderion · Wikimedia Commons · CC BY-SA. Source

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