World problems

Title
Threatened species of Mellivora
Threatened species of Hemichordata
Threatened species of predatory birds
Threatened species of Strigiformes
Extinct species of Synapsida
Extinct species of Therapsida
Threatened species of Insectivora
Threatened species of flightless birds
Extinct species of Protosuchia
Extinct species of Diatrymiformes
Threatened species of Archosauria
Threatened species of Anapsida
Threatened species of Pleurodira
Threatened species of Gruiformes
Extinct species of Aepyornithiformes
Extinct species of Hesperornithiformes
Extinct species of Archaeopterygiformes
Threatened species of Crocodylia
Extinct species of Mesosuchia
Extinct species of Dinornithiformes
Threatened species of Saccostomus
Threatened species of Meles
Threatened species of Felidae
Threatened species of Falconiformes
Threatened species of Testudines