THE BIGGER PICTURE.

The article discusses the human threat to endangered species including langurs in Rajasthan, India, and marine iguanas in the Galapagos Islands. It states that most of the threatened species highlighted in British Broadcasting Corp. (BBC)'s television series "Planet Earth II" have been accorded the 'endangered' status by the international organization, International Union for the Conservation of Nature (IUCN). Declining ecosystems, and challenges of wildlife conservation are discussed.