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Three New Live-Bearing Tree Toad Species Identified in Tanzania’s Eastern Arc Mountains

DNA recovered from century-old museum specimens confirmed the distinct lineages, underscoring urgent conservation needs for their shrinking forest habitats.

Overview

  • A peer-reviewed study in Vertebrate Zoology formally describes Nectophrynoides luhomeroensis, N. uhehe, and N. saliensis.
  • The toads are viviparous with internal fertilization, giving birth to fully formed froglets in a reproductive mode found in fewer than 1% of frog species.
  • Researchers documented exceptionally large broods, including counts of more than 100 embryos in a single female.
  • The species are confined to small, fragmented forests in the Eastern Arc Mountains, where deforestation, mining, and climate change pose serious risks, according to coauthors.
  • The team combined museomics of specimens collected over 120 years ago with comparative morphology across museum collections, involving institutions in Denmark, Germany, Tanzania, and elsewhere.