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Scientists Identify Three New Live‑Bearing Tree Toads in Tanzania

Using DNA from century‑old museum specimens, researchers pinpoint distinct, range‑restricted lineages facing rapid habitat loss.

Overview

  • The newly described species—Nectophrynoides luhomeroensis, N. uhehe, and N. saliensis—come from Tanzania’s Eastern Arc Mountains.
  • Genetic data extracted from specimens collected over 120 years ago, combined with morphology and field records, clarified long‑confused populations.
  • The findings recast Nectophrynoides viviparus as a complex of isolated lineages rather than a single widespread species.
  • These toads practice true live birth, a mode seen in fewer than 1% of frogs and toads, with more than 100 embryos counted in a single female.
  • Researchers warn that fragmented forests, deforestation, mining, and climate change threaten these localized populations, noting related species already extinct in the wild or unrecorded since 2003; the study was published Nov. 6 in Vertebrate Zoology.