Brown, L.E.Southwestern Naturalist2010-02-152010-02-151971http://hdl.handle.net/1969.3/18888p. 185-199.This paper discussed hybridization between the endangered Houston toad (Bufo houstonensis) and two other sympatric toads in Harris County and Bastrop County, Texas. It is concluded that the Houston toad is near extinction and getting nearer.amphibiansHouston toadBufo houstonensishybridizationendangered speciesherpetologyNatural hybridization and trend toward extinction in some relict Texas toad populations.Article