Vanishing species are threat to the food web cycle.because if even one species become absent then whole system gets imbalanced.As for example recently we have seen the population crisis in tigers population and we all gets in process to save tiger .but the main reason of saving tigers is to crate a balance in ecology because if they become extinct then the lower trophic level that is rabbits deer will grew that can consume its prey more and this again cause imbalance.So every species is important for ecological balance.
wildlife is our beauty of nature gifted by the god they are found every where on the earth but we are vanishing the wild life for our uses for entertainment , for money we are hunting and killing the large number of species we are exploiting the large number of species as a result species are going to extinct and vanishing from the earth  whenever hunting occurs for our entertainment , leaders and his body parts  at rates greater than the reproductive capacity of the population is being exploited and population is decreasing by this bad habits of humans .All wild populations of living things have many complex intertwining links with other living things around them. Today, only 3,200 tigers populate 42 source sites across thirteen countries in Asia that are now the last hope and greatest priority for the conservation and recovery of the world’s largest cat and other animals are also going to vanished . Destruction of wildlife  always lead to an extinction of the species and we have to save them  from thieves of nature .