Mamals
Insects
Fishes
Birds
100
Which mammal is unable to vomit?
Horse
100
What is this insect? 
Ladybug
100
What is this fish? 
Tuna
100
What is the smallest bird in the world?
The hummingbird zunzuncito
200
True or false
Are there any completely mute mammals?
True
200
This animal has more than 2,000 muscles
Caterpillar
200
What is the animal that begets its own offspring and is also male?
Seahorse
200
Which birds build the largest nests?
The Republican Weaver
300
What mammal is unable to look at the sky?
Pig
300
What is the name of the largest beetle in the world?
Titan beetle
300
What is the fastest fish of all?
Indo-Pacific sailfish
300
What are the birds capable of solving problems, making and using tools
The crows
400
The most fleeting sexual intercourse in the animal world (about 5 seconds) belongs to ...
Mice
400
Flies always buzz on a musical scale. You know which one is?
FA major
400
How many teeth does a whale shark have on average?
More than 4500
400
What is this bird?
Blue-footed Booby