WHO WILL WIN?
Rattlesnake
CHK-CHK-BUZZ
T. rex
RAAWR
THE SETUP

Rattlesnake vs T. rex

Rattlesnake
Rattlesnake
T. rex
T. rex

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

Would they meet?

No. Rattlesnake and T. rex 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

Rattlesnake

Crotalus atrox · A desert alarm clock with a noisy tail.

Rattlesnake
Home
North American deserts · Lives in North America
Food
Meat
Group
Lives alone
Size
Rattlesnake is tiny.

Sit, rattle, strike.

Heat pits are infrared goggles.

Would rather be left alone.

  • Rattlesnake is tiny and slow.
  • Mice, rats, rabbits — small warm snacks of the desert.
  • Rocks, brush, and sunny ledges where a coil can stay toasty.

Family: Other pit vipers, including copperheads.

Corner B

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!

TO SCALE!

SIZE & WEIGHT

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

1.70 m

Grown-up

0.15 m

Rattlesnake to scale

Rattlesnake

3.7 m

T. rex to scale

T. rex

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

Rattlesnake2 kg

About as heavy as a water bottle, louder than a snack bag.

T. rex8,200 kg

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

Rattlesnake

0.15 m · 2 kg

Rattlesnake is tiny. 2 kg.

T. rex

3.7 m · 8,200 kg

T. rex is giant. 8,200 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: Hinged venom fangs
  • Armor: Rattle warning
  • Senses: Heat pits are infrared goggles.

Rattlesnake · labeled field diagram

  • 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

Rattlesnake80 psi bite
T. rex8000 psi bite

Rattlesnake

Hinged venom fangs

Tool: hinged venom fangs. Bite: 80 psi.

T. rex

Banana-sized bone shears

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

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

Whose tools would you trust?

ZOOM!

SPEED

Who gets there first?

Rattlesnake
8 km/h
T. rex
20 km/h
Rattlesnake8 km/h
T. rex20 km/h

Rattlesnake

8 km/h

Rattlesnake can go 8 km/h. That is slow.

T. rex

20 km/h

T. rex 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
RattlesnakeT. rexBoth

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

Rattlesnake

Can handle it · Lives in North America

Rattlesnake's home is the north american deserts, not grassland.

T. rex

This is home · Lived in North America long ago

T. rex lives in places like grassland.

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

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Rattlesnake
Meat · Sit, rattle, strike.
T. rex
Meat · Giant bite-and-pull hunter.

Rattlesnake

Meat · Sit, rattle, strike.

Mice, rats, rabbits — small warm snacks of the desert.

T. rex

Meat · Giant bite-and-pull hunter.

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

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.

Rattlesnake
Lives alone
T. rex
Lives alone
Rattlesnake7 grit /10
T. rex9 grit /10

Rattlesnake

Lives alone

Would rather be left alone. Grit: 7/10.

T. rex

Lives alone

Top of a vanished food web. 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?

Rattlesnake
4/10
T. rex
5/10
Rattlesnake4 brains /10
T. rex5 brains /10

Rattlesnake

4/10

Heat pits are infrared goggles.

T. rex

5/10

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

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

Who would you score for noticing?

COUSINS!

FAMILY

Who are they related to?

Rattlesnake
Crotalus atrox
T. rex
Tyrannosaurus rex

Rattlesnake

Crotalus atrox

Other pit vipers, including copperheads.

T. rex

Tyrannosaurus rex

Birds!

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?

Rattlesnake
Buzz Then Zap
T. rex
Bone-Crunch Clamp

Rattlesnake

Buzz Then Zap

First the concert.

T. rex

Bone-Crunch Clamp

T.

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: Rattlesnake 0 · T. rex 0 · still open 8

Who wins the meeting?

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

THWACK!

THEY MEET

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

Pretend · fact-based · not a gore-fest

SLAM!

THE TOOLS SHOW UP

T. rex is heavier. Rattlesnake uses hinged venom fangs. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

POW!

SPECIAL MOVES

Rattlesnake tries the Buzz Then Zap. T. rex tries the Bone-Crunch Clamp. 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. Rattlesnake 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: Rattlesnake 0 · T. rex 8.

Your card: Rattlesnake 0 · T. rex 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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