Institute Of Forestry Hetauda

A researcher’s quest to clean Nepal’s water leads to an unexpected journey Environmental biologist comes up with a novel solution to remove arsenic from Nepal’s water supply

Massive Bird Nests on Telephone Poles

In the Kalahari Desert, South Africa, a native bird called the Sociable Weaver Bird constructs massive nests that, from a distance, looks like a giant haystack that's fallen into a tree.

These nests are the largest built by any bird, and are large enough to house over a hundred pairs of birds. Some sociable weaver nests have remained occupied for several generations spanning over 100 years.