Here is another idea from Cidalia Marques, one of the Taccle team from Portugal.

Portugese classrooms often have animals in their classes. The most usual animals are silkworms, fishes or hamsters . This is the first step to approach the animals habits, characteristics, feeding and caring about them

Having an animal in the class serves as motivation for talking about other animals.
So we can register the growth, habits, some specific characteristics with a camera (photos or videos), we can use Capzles either to do one presentation of the evolution or compare charesteristics of different animals. The children can make their work adding pictures, videos, excell sheets, text, links or pdf. one example:
Capzles is easy to use and we can add different media files.