A mystery ship

Click on the the square above when you read the name of the animal and on the square below when you read vertebrate or invertebrate....

Choose an animal, tap on it to see the category it belongs to. Then, tap on the name of another animal. Such animal must be either the parent or the baby of the first animal you tapped. There are two pairs for each of the three categories....

Completa el text sobre els animals....

Read the text and correct the errors in the bracket....