Our country is a riverine land. Rivers are deeply intertwined with the very formation of this land. Yet, even today, the definition of a river has not been finalised in Bangladesh.

River-realm or river-sphere, or, in a technical sense, river ecology, has been a recurring topic in our many conversations.

Spread across 43 km (27 mi) of the Tocantins River, this rock formation is an obstacle to ship navigation during the dry season, from June to December, blocking the passage of boats coming from the ...