WHO WILL WIN?
T. rex
RAAWR
Hyena
WHOOP-HAHA
THE SETUP

T. rex vs Hyena

T. rex
T. rex
Hyena
Hyena

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

Would they meet?

No. T. rex and Hyena 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

Hyena

Crocuta crocuta · The bone-crunching comedian of the savanna.

Hyena
Home
African savanna · Lives in Africa
Food
Meat
Group
Hunts with a pack
Size
Hyena is medium.

Clan chasers and bone-crushers.

Night hunters with a nose for leftovers and a bite that opens bones.

Bold in a clan.

  • Hyena is medium and fast.
  • They hunt more than they scavenge.
  • Open grassland where clans can hear each other across the night.

Family: Not dogs.

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

0.85 m

Hyena to scale

Hyena

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.

Hyena70 kg

About as heavy as a big dog that skipped every 'drop it' lesson.

T. rex

3.7 m · 8,200 kg

T. rex is giant. 8,200 kg.

Hyena

0.85 m · 70 kg

Hyena is medium. 70 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: Bone-blender jaws
  • Armor: Scrappy stamina
  • Senses: Night hunters with a nose for leftovers and a bite that opens bones.

Hyena · labeled field diagram

T. rex8000 psi bite
Hyena1100 psi bite

T. rex

Banana-sized bone shears

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

Hyena

Bone-blender jaws

Tool: bone-blender jaws. Bite: 1,100 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
Hyena
60 km/h
T. rex20 km/h
Hyena60 km/h

T. rex

20 km/h

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

Hyena

60 km/h

Hyena can go 60 km/h. That is 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. rexHyenaBoth

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.

Hyena

This is home · Lives in Africa

Hyena lives in places like grassland.

No. T. rex and Hyena 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.
Hyena
Meat · Clan chasers and bone-crushers.

T. rex

Meat · Giant bite-and-pull hunter.

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

Hyena

Meat · Clan chasers and bone-crushers.

They hunt more than they scavenge.

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
Hyena
Hunts with a pack
T. rex9 grit /10
Hyena9 grit /10

T. rex

Lives alone

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

Hyena

Hunts with a pack

Bold in a clan. Grit: 9/10.

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
Hyena
7/10
T. rex5 brains /10
Hyena7 brains /10

T. rex

5/10

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

Hyena

7/10

Night hunters with a nose for leftovers and a bite that opens bones.

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
Hyena
Crocuta crocuta

T. rex

Tyrannosaurus rex

Birds!

Hyena

Crocuta crocuta

Not dogs.

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
Hyena
Whoop-and-Swarm

T. rex

Bone-Crunch Clamp

T.

Hyena

Whoop-and-Swarm

The laugh is a call, not a joke.

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 · Hyena 0 · still open 8

Who wins the meeting?

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

FWOOSH!

THEY MEET

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

Pretend · fact-based · not a gore-fest

KICK!

THE TOOLS SHOW UP

T. rex is heavier. Hyena uses bone-blender jaws. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

STOOMP!

SPECIAL MOVES

T. rex tries the Bone-Crunch Clamp. Hyena tries the Whoop-and-Swarm. 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 is a lot heavier. Hyena 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 5 · Hyena 2 · ties 1.

Your card: T. rex 0 · Hyena 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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