Tól től Heinz Sielmann-Produktion Studios

The courtship behavior of Great Bustards is studied. The male Great Bustard is considerably larger than the female. This impression is reinforced...

The film shows open air shots of life in the colony of the sea lion. The following behaviours are shown: establishing territories and rivalry fights,...

In 1966, Heinz Sielmann sets off on his longest expedition. He spent 19 months traveling through the wilderness of North America. From the alligator...

Following in the footsteps of Charles Darwin, Heinz Sielmann traveled to the bizarre volcanic islands of Galapagos. The multi-award-winning film...

The three-spined stickleback is shown. Nest building, zigzag dance, fanning at the nest, sometimes following a female, also short mouth fights, the...