Fauna
Amphibian

Pumpkin Toadlet

Brachycephalus ephippium

Also known as Spix's Saddleback Toad

Pumpkin toadlets are diurnal, leaf-litter specialists famous for their brilliant orange aposematic coloration and miniature stature. Their skeletal plates fluoresce vivid turquoise under ultraviolet light, shining directly through thin patches of translucent skin to warn predators of their lethal tetrodotoxin defenses. Remarkably, their inner ears are so underdeveloped that adults cannot hear their own high-pitched mating calls, relying instead on visual displays and body posturing to communicate.

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Pumpkin Toadlet reference1 / 4
(c) Carlos Otávio Gussoni, some rights reserved (CC BY), uploaded by Carlos Otávio Gussoni · cc-by
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preySpringtails, Oribatid mites, Small ants
Predators
  • Pecan spider
  • Ground-hunting invertebrates
ThreatsHabitat loss from deforestation, agricultural expansion, and climate change
HabitatsMontane Atlantic rainforest leaf litter
Life span4–8 years
Classification
  1. FamilyBrachycephalidae
  2. SpeciesBrachycephalus ephippium
Range & activity
Range data is not available yet.
Safe observation
Interaction riskHigh
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is high
Skin contains potent tetrodotoxin; never handle with bare hands or ingest.
Why it is dangerous
Skin and organs contain tetrodotoxin and related deadly neurotoxins that block sodium channels, causing paralysis or respiratory failure if ingested.
How to recognize a risky encounter
Look for a bright pumpkin-orange miniature frog less than two centimeters long crawling sluggishly over forest floor leaf litter.
What to do
Never touch or handle bare-handed; keep curious pets away and wash skin immediately if accidental contact occurs.
Responsible observation
  • Scan Leaf Litter: Search carefully on sunny mornings among fallen damp leaves in montane forest.
  • Do Not Touch: Admire purely visually, as their skin secretions contain deadly neurotoxins.
  • UV Flashlight: Shine a 365 nm blacklight to see their bones glow through their skin.
Related species
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