In recent years, pollution leading to climate change has been unanimously accepted; especially arsenic, anti-JH compounds and insect pest management and effect of methoxychlor on male reproduction are important topics of the book. We hope that the contributions by the eminent scientists would certainly generate interest in the young minds to come forward to accept the challenges of the emerging trends in zoological research. We are also extremely grateful to the contributors for sparing time from their busy schedule to compile their articles relevant and important for this issue. 3rd
