For most of the world’s 4,000 mayfly species, adulthood lasts roughly one day. And for some species, it’s only a matter of minutes. This isn’t because they’re all eaten up by predators. Rather, this abridged adulthood is a natural part...

With wisdom and wit, Anupam Mishra talks about the amazing feats of engineering built centuries ago by the people of India's Golden Desert to harvest water. These ancient aqueducts and stepwells are still used today -- and are often...

Fish either reach new lakes and ponds through external help, or the creatures stay there, survive the period of drought, and then thrive again when water is plentiful. Some species of aquatic organisms lay eggs capable of surviving long...

Fish either reach new lakes and ponds through external help, or the creatures stay there, survive the period of drought, and then thrive again when water is plentiful. Some species of aquatic organisms lay eggs capable of surviving long...

It explains causes for water pollution, international standards for drinking water, biomagnification, eutrophication.

These videos compliment the variety of water quality programs that occur in Acadia National Park. For teachers looking for good background information on water quality or those looking to attend the Floating Classroom field trip, this...

It explains the sources of water pollution, its effects and the ways to prevent and control water pollution.

This video explains the causes of floods and their devastating consequences on a nation's economy, environment, and people. It also discusses the factors that contribute to floods and how they can be prevented through water conservation...