Błękitna planeta Odcinek 7: Tidal Seas

Tidal marshes are among the most productive habitats in the world. Numerous plants support numerous animals, yet life is not easy. Relief comes with the crashing waves, as the tides flow once more. But between the tides, when the sands become depleted of food and air, the worms, clams and shrimps must endure the expected pause.