Mammals
Birds
Fish
Reptiles
Amphibians
100

A physical characteristic that all mammals have at some point in their life.

What is hair/fur?

100

A unique body covering exclusive to birds.

What is feathers?

100

The organ that most fish use to breathe.

What are gills?

100

This process allows reptiles to shed old skin.

What is molting?

100

The process amphibians go through to be able to breathe in both land and water.

What is metamorphosis?
200

Only mammal capable of true flight.

What is a bat?

200

This bird lays the largest eggs.

What is an ostrich?

200

The most eaten fish in the world.

What is tuna?

200

Largest species of lizard?

What is a komodo dragon?

200

Amphibians often lay their eggs in this environment.

What is water?
300

The type of blood temperature regulation mammals have.

What is endothermic/warm-blooded?

300

The structure in birds that help reduce weight.

What is hollow bones?

300

Fastest fish reaching top speeds of 68 mph.

What is a sailfish?

300

The largest living reptile in the world, reaching up to 23 feet in length and weighing up to 2,200 lbs.

What is a saltwater crocodile?

300

This life stage comes between the egg and the adult in frogs.

What are tadpoles?

400

This mammal has a mix of reptilian and avian genes.

What is a platypus?

400

Bird adaptation that allows for efficient breathing during flight.

What is air sacs?
400

Dolphins get high off of this fish's venom.

What is a puffer fish?

400

This reptile group is most closely related to birds.

What are crocodilians?

400

This amphibian is famous for never fully metamorphosing.

What is an axalotl?

500

This mammal has the longest pregnancy of any mammal (22 months).

What is an Elephant?

500

The only bird that can fly backwards.

What is a hummingbird?

500

The only species of shark that can also thrive in rivers.

What is a bull shark?

500

This country has the highest concentration of venomous reptiles.

Australia

500

The most poisonous animal on earth.

What is a golden poison dart frog?