WHO WILL WIN?
Rattlesnake
CHK-CHK-BUZZ
Carnotaurus
SNARL-HORN
THE SETUP

Rattlesnake vs Carnotaurus

Rattlesnake
Rattlesnake
Carnotaurus
Carnotaurus

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

Would they meet?

No. Rattlesnake and Carnotaurus 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

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.

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

2.5 m

Carnotaurus to scale

Carnotaurus

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

Rattlesnake2 kg

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

Carnotaurus1,400 kg

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

Rattlesnake

0.15 m · 2 kg

Rattlesnake is tiny. 2 kg.

Carnotaurus

2.5 m · 1,400 kg

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

Carnotaurus · labeled field diagram

Rattlesnake80 psi bite
Carnotaurus1500 psi bite

Rattlesnake

Hinged venom fangs

Tool: hinged venom fangs. Bite: 80 psi.

Carnotaurus

Horned skull plus a meat-slicer jaw

Tool: horned skull plus a meat-slicer jaw. Bite: 1,500 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
Carnotaurus
48 km/h
Rattlesnake8 km/h
Carnotaurus48 km/h

Rattlesnake

8 km/h

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

Carnotaurus

48 km/h

Carnotaurus can go 48 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 the desert. Who is built for this place?

N. AmericaS. AmericaEuropeAfricaAsiaAustraliaAntarctica
RattlesnakeCarnotaurusBoth

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

Rattlesnake

This is home · Lives in North America

Rattlesnake lives in places like the desert.

Carnotaurus

Can handle it · Lived in South America long ago

Carnotaurus's home is the late cretaceous plains of patagonia, not the desert.

No. Rattlesnake and Carnotaurus 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.
Carnotaurus
Meat · Sprint hunter of Patagonia.

Rattlesnake

Meat · Sit, rattle, strike.

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

Carnotaurus

Meat · Sprint hunter of Patagonia.

Medium plant-eaters on South American plains.

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
Carnotaurus
Lives alone
Rattlesnake7 grit /10
Carnotaurus7 grit /10

Rattlesnake

Lives alone

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

Carnotaurus

Lives alone

A bull-headed sprinter. 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?

Rattlesnake
4/10
Carnotaurus
4/10
Rattlesnake4 brains /10
Carnotaurus4 brains /10

Rattlesnake

4/10

Heat pits are infrared goggles.

Carnotaurus

4/10

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

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
Carnotaurus
Carnotaurus sastrei

Rattlesnake

Crotalus atrox

Other pit vipers, including copperheads.

Carnotaurus

Carnotaurus sastrei

Abelisaurids like Abelisaurus and Majungasaurus.

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
Carnotaurus
Patagonia Sprint Horns

Rattlesnake

Buzz Then Zap

First the concert.

Carnotaurus

Patagonia Sprint Horns

The tail and legs look built for speed.

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 · Carnotaurus 0 · still open 8

Who wins the meeting?

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

WHAM!

THEY MEET

Carnotaurus runs first. Rattlesnake does not race. They wait in the desert.

Pretend · fact-based · not a gore-fest

WHOOSH!

THE TOOLS SHOW UP

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

Pretend · fact-based · not a gore-fest

ZING!

SPECIAL MOVES

Rattlesnake tries the Buzz Then Zap. Carnotaurus tries the Patagonia Sprint Horns. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

Carnotaurus!

A STOMP

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

On the desert, Carnotaurus wins. Carnotaurus is a lot heavier. 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 1 · Carnotaurus 2 · ties 5.

Your card: Rattlesnake 0 · Carnotaurus 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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