WHO WILL WIN?
T. rex
RAAWR
Walrus
BELLOW-OONG
THE SETUP

T. rex vs Walrus

T. rex
T. rex
Walrus
Walrus

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

Would they meet?

No. T. rex and Walrus 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

T. rex

Tyrannosaurus rex · The banana-toothed bone cruiser.

T. rex
Home
Late Cretaceous floodplains of western North America · Lived in North America long ago
Food
Meat
Group
Lives alone
Size
T. rex is giant.

Giant bite-and-pull hunter.

A huge smelling system and eyes that faced more forward than most dinosaurs.

Top of a vanished food web.

  • T. rex is giant and not very fast.
  • Horned dinosaurs, duckbills, leftover carcasses — a giant meat-eater that did not skip free calories.
  • Fossils come from places like Hell Creek: forests, rivers, and floodplains about 66 million years ago.

Family: Birds!

Corner B

Walrus

Odobenus rosmarus · A tusked sofa that rules the ice.

Walrus
Home
Arctic sea ice · Lives in North America / Asia / Europe
Food
Meat
Group
Lives in a big group
Size
Walrus is big.

Clam vacuum with tusks for ice and arguments.

Whiskers find shellfish in the dark.

A tusked sofa that does not like being shoved.

  • Walrus is big and not very fast.
  • Clams, mostly.
  • Pack ice and rocky coasts, in noisy piles called haulouts.

Family: Seals and sea lions.

TO SCALE!

SIZE & WEIGHT

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

1.70 m

Grown-up

3.7 m

T. rex to scale

T. rex

1.20 m

Walrus to scale

Walrus

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

T. rex8,200 kg

Hip-tall as a basketball hoop, heavier than an African elephant, longer than a school bus.

Walrus900 kg

As heavy as a small car, with mustache energy for days.

T. rex

3.7 m · 8,200 kg

T. rex is giant. 8,200 kg.

Walrus

1.20 m · 900 kg

Walrus is big. 900 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: Banana-sized bone shears
  • Armor: Thick skull and a neck like a crane
  • Senses: A huge smelling system and eyes that faced more forward than most dinosaurs.

T. rex · labeled field diagram

  • Weapon: Ivory ice picks
  • Armor: Blubber fortress
  • Senses: Whiskers find shellfish in the dark.

Walrus · labeled field diagram

T. rex8000 psi bite
Walrus300 psi bite

T. rex

Banana-sized bone shears

Tool: banana-sized bone shears. Bite: 8,000 psi.

Walrus

Ivory ice picks

Tool: ivory ice picks. Bite: 300 psi.

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

Whose tools would you trust?

ZOOM!

SPEED

Who gets there first?

T. rex
20 km/h
Walrus
20 km/h
T. rex20 km/h
Walrus20 km/h

T. rex

20 km/h

T. rex can go 20 km/h. That is not very fast.

Walrus

20 km/h

Walrus can go 20 km/h. That is not very fast.

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
T. rexWalrusBoth

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

T. rex

This is home · Lived in North America long ago

T. rex lives in places like grassland.

Walrus

Wrong place · Lives in North America / Asia / Europe

Walrus's home is the arctic sea ice, not grassland.

No. T. rex and Walrus did not live at the same time. This meeting is pretend.

Who gets the home point?

MENU!

FOOD

How do they get lunch?

T. rex
Meat · Giant bite-and-pull hunter.
Walrus
Meat · Clam vacuum with tusks for ice and arguments.

T. rex

Meat · Giant bite-and-pull hunter.

Horned dinosaurs, duckbills, leftover carcasses — a giant meat-eater that did not skip free calories.

Walrus

Meat · Clam vacuum with tusks for ice and arguments.

Clams, mostly.

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.

T. rex
Lives alone
Walrus
Lives in a big group
T. rex9 grit /10
Walrus7 grit /10

T. rex

Lives alone

Top of a vanished food web. Grit: 9/10.

Walrus

Lives in a big group

A tusked sofa that does not like being shoved. 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?

T. rex
5/10
Walrus
5/10
T. rex5 brains /10
Walrus5 brains /10

T. rex

5/10

A huge smelling system and eyes that faced more forward than most dinosaurs.

Walrus

5/10

Whiskers find shellfish in the dark.

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

Who would you score for noticing?

COUSINS!

FAMILY

Who are they related to?

T. rex
Tyrannosaurus rex
Walrus
Odobenus rosmarus

T. rex

Tyrannosaurus rex

Birds!

Walrus

Odobenus rosmarus

Seals and sea lions.

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?

T. rex
Bone-Crunch Clamp
Walrus
Tusk-Hook Haul

T. rex

Bone-Crunch Clamp

T.

Walrus

Tusk-Hook Haul

They can hook ice, bellow, and make a beach of other pinnipeds scoot over.

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: T. rex 0 · Walrus 0 · still open 8

Who wins the meeting?

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

SKREEE!

THEY MEET

T. rex runs first. Walrus does not race. They wait in grassland.

Pretend · fact-based · not a gore-fest

CHOMP!

THE TOOLS SHOW UP

T. rex is heavier. Walrus uses ivory ice picks. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

SNAP!

SPECIAL MOVES

T. rex tries the Bone-Crunch Clamp. Walrus tries the Tusk-Hook Haul. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

T. rex!

A STOMP

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

On grassland, T. rex wins. T. rex likes grassland more. Walrus 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: T. rex 6 · Walrus 0 · ties 2.

Your card: T. rex 0 · Walrus 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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