Figure S1. Haematoxylin and eosing stained endometrium from pregnant (A-C) and females in the estrous cycle (D-E).; Figure S2. Gene ontology analysis of significant differences between late estrous (ELG) and late pregnancy (LG).; Figure S3. Gene ontology analysis of significant differences between mid estrous (EMG) and non-pregnant samples (NP). from Endometrial recognition of pregnancy occurs in the grey short-tailed opossum (Monodelphis domestica)