Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (nl)
Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (Rana catesbeiana) and an Hypothesis Concerning Breeding Interference (en)
Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (nl)
Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (Rana catesbeiana) and an Hypothesis Concerning Breeding Interference (en)
Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (nl)
Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (Rana catesbeiana) and an Hypothesis Concerning Breeding Interference (en)
Observations of Interspecific Amplexus Between Western North American Ranid Frogs and the Introduced American Bullfrog (Rana catesbeiana) and an Hypothesis Concerning Breeding Interference (en)