reptiles
mammals
fish
insects
birds
100

What is the biggest reptile in the world?

Saltwater crocodile

100

What is the biggest mammal in the world?

Blue whale

100

What is the largest dolphin in the world?

Killer whale

100

What is the smallest bee in the world?

Featherwing beetle

100

What is the smallest bird in the world?

Bee humming bird

200

What is the smallest lizard in the world?

Nano chameleon

200

What is the biggest marsupial in the world?

Red kangeroo

200

What is the smallest dolphin in the world?

Hector's dolphin

200

What is the smallest insect in the world?

Parasitic wasp

200

What is the biggest bird in the world?

wandering Albotross

300

What is the smallest snake in the world?

Thread snake

300

What is the smallest mammal in the world?

Etruscan shrew

300

What is the smallest shark in the world?

Dwarf lantern shark

300

What is the biggest insect in the world?

Giant weta

300

What is the smallest flightless bird in the world?

Andean condor

400

What is the biggest snake in the world?

Green anaconda

400

Can you name two egg-laying mammals?

Platypus and Western long-beaked echidna

400

What is the biggest fish in the world?

Whale shark

400

What is the biggest bee in the world?

Wallace's giant bee

400

What is the biggest flightless bird in the world

Ostrich

500

What is the smallest crocodile in the world?

West African dwarf crocodile

500

What is the smallest marsupial in the world?

Long-tailed planigale

500

What is the smallest whale in the world?

Dwarf sperm whale

500

What is the smallest ant in the world?

Dinoponera

500

What is the smallest bird of prey in the world?

Black-footed falconet