When the climate became much wetter, some of these desert species were able to survive on the dry sandy ridges.
(the climate; became; much wetter) (some of these desert species; were; able to survive on the dry sandy ridges; T:When the climate became much wetter) (some of these desert species; to survive; on the dry sandy ridges)
the climate some of these desert species some of these desert species
became were to survive
much wetter
able to survive on the dry sandy ridges T:When the climate became much wetter
on the dry sandy ridges