DU-Harvard study uncovers hidden Northeast biodiversity, horned frogs coincide with rise of Himalaya. Researchers from Delhi University and Harvard University found the frogs after five years of fieldwork in remote Himalayan forests. Scientists say the frogs evolved as the Himalayas rose and the Asian monsoon took shape. Five new diminutive horned frog species discovered in Arunachal Pradesh, doubling Jingophrys diversity and spotlighting Himalayan biodiversity research.