Not all the homologies have a species_tree_node_id
Not all the homologies have a species_tree_node_id

etapanari/ensembl-compara,etapanari/ensembl-compara,Ensembl/ensembl-compara,etapanari/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,danstaines/ensembl-compara,ckongEbi/ensembl-compara,danstaines/ensembl-compara,danstaines/ensembl-compara,kumarsaurabh20/ensembl-compara,dbolser-ebi/ensembl-compara,danstaines/ensembl-compara,Ensembl/ensembl-compara,dbolser-ebi/ensembl-compara,kumarsaurabh20/ensembl-compara,dbolser-ebi/ensembl-compara,Ensembl/ensembl-compara,kumarsaurabh20/ensembl-compara,Ensembl/ensembl-compara,kumarsaurabh20/ensembl-compara,danstaines/ensembl-compara,Ensembl/ensembl-compara,ckongEbi/ensembl-compara,ckongEbi/ensembl-compara,etapanari/ensembl-compara,Ensembl/ensembl-compara