experiment  species            adult_collection_site  latitude     longitude    
1           Menidia_menidia    Poquot_Beach_NY        40.947376    -73.10258    
2           Menidia_menidia    Mumford_Cove_CT        41.321526    -72.015247   
3           Menidia_menidia    Mumford_Cove_CT        41.321526    -72.015247   
4           Menidia_menidia    Mumford_Cove_CT        41.321526    -72.015247   
5           Menidia_menidia    Mumford_Cove_CT        41.321526    -72.015247