The species of bonobo or large ape has been listed on the IUCN Red List as Endangered or Critically Endangered since 1994. For the past 40 years, scientists have tracked the numbers of endangered bonobos in the Congo Basin's forests by counting the number of apes left in their resting nests. Researchers estimate that there are now very few bonobos left in the wild. Bonobos (Pan paniscus) are a species of chimpanzee-like large ape found only in the rain forests of the Congo Basin. Let us tell here that the Congo rainforest is the second largest forest area on the earth and it is known as the 'green lungs' of the earth. Researchers at the Max Planck Institute of Animal Behavior report that the rate of 'destroying' of bonobo resting nests has increased by 17 days over the past 15 years as a result of declining rainfall in the Congo Basin . The study warns that prolonged non-destruction of the nest means apes are at serious risk of conservation. These meteorological changes have shown the population density to increase by as much as 60 percent, thereby threatening the conservation of the endangered large apes that live in these forests. The study is underway in collaboration with scientists from the Liverpool John Moores University, the Center for Research and Conservation and the Max Planck Institute of Animal Behavior, the Louiscotelle Bonobo Project. The purpose of which is to assess the impact of weather on the destruction of the bonobo sleeping platform, also known as the nest. At the Luicotale research area in the Democratic Republic of the Congo, scientists studied 15 years of climate data, including rainfall. Where 1,511 bonobo nests were seen from construction to disappearance. Barbara Fruit of the Max Planck Institute says climate change is known to affect Central African rain forests. The lack of actual data from the Congo Basin meant we had no idea how it was affecting the region and the bonobo. Our study confirms that the world's largest reservoir of fresh water is vulnerable to climate change. This research has been published in the journal PLOS ONE . This disturbing trend has increased importance to bonobos and larger apes in general, as their populations are estimated not by actual apes counts, but by the nests they leave each night. Knowing how fast these nests are disappearing is essential to convert nest counts to apes counts. The results of the study showed a steady decline in rainfall over the years and its effect on the timing of bonobo nest destruction. Less rainfall meant that nests remained in the forest longer. In addition, scientists observed bonobos using more convincing construction methods in response to more unpredictable storms. Researcher Mattia Besson said the link between nest destruction and climate change is relevant to the conservation of all large apes, as nest counts are used as the gold standard for estimating their populations. As climate change continues to affect both the process of nest destruction and the nest-building behavior of apes. The nesting time of large apes is expected to increase from year to year in the future. The researcher said that we emphasize the absolute need keeping in mind the specific impact of climate. Nest in areas where these are being used to survey larger apes. Doing so has the downside, it would invalidate biomonitoring estimates of global importance and subsequently endanger the conservation of these large wild apes.