57:19
The living planet : a portrait of the earth: the margins of the land
Life between the tides makes great demands on the inhabitants, yet many creatures have made their home in this shifting world of mud and sand. Mangroves with their roots help to expand the coastline, and in Bangladesh a varied community inhabit the ...
09:58
Aquatic biomes
Ranging from rivers and lakes, to wetlands and intertidal zones, to coral reefs and kelp forests, aquatic ecosystems are as diverse as the life-forms that inhabit them. This program introduces students to a variety of the world's aquatic biomes. The...