EVANSTON — Confronting ever-dwindling numbers, School of Education and Social Policy Dean Penelope Peterson decided on Friday to transfer all remaining students into sheltered habitats. Despite being the most transferred-into school at Northwestern, the number of SESP students has dropped to a dangerous low; experts say the rare breed is now critically endangered. The decision was spurred by widespread reports of legitimate colleges “poaching” SESP students. Northwestern ecologist and activist Brenda Grombel described the situation, “What these people do is