Swallowtail butterflies in key Assam habitat face a citrus worry

The overexploitation of 25 species of host plants valued for their medicinal properties has affected swallowtail butterflies in forests on the Brahmaputra’s northern bank

​The overexploitation of 25 species of host plants valued for their medicinal properties has affected swallowtail butterflies in forests on the Brahmaputra’s northern bank