**Meet the editor**

Sajal Ray received his MS and MPhil degrees from Calcutta University in Zoology and Environmental Science, respectively, and his PhD degree from Jadavpur University. His thesis reports immunotoxicity of pesticide in an economically important snail of India. As an awardee of Fogarty Visiting Fellowship, Ray carried out his postdoctoral research in cardiac pathology at the National

Institutes of Health, USA. His research interest is studying the immunological responses of mollusc, sponge, crab and earthworm exposed to pollutants. His team is engaged in understanding the evolutionary mechanism of immunity in phylogeny. He presented his research in the World Congress of Malacology at Washington DC. Sajal Ray, a professor of Zoology at Calcutta University, has been teaching Zoology for nearly 30 years at the postgraduate level.
