Kako žive životinje

Egzotične ptice

Život životinja

Zemlja - tajanstven planet

Sometimes, however, even scientists grope in the dark because the Earth does not easily reveal all its remaining secrets. Reality, as it often happens, is more exciting than any novel.

Preistorijske životinje

Priče iz biljnog svijeta

"Stories from the Plant World" by Franjo Dolenc, a Croatian biologist and educational writer, is a collection of short stories for upper elementary school grades, intended to educate children about the plant world through entertaining stories.