Mr Burns beaked toad (Rhinella sp. nov.)

Rhinella sp. nov.

Top facts

  • Mr Burns beaked toad was first discovered in the cloud forests of western Colombia in 2010.
  • The colouration and shape of Mr Burns beaked toad offer it camouflage against the dead leaves on which it lives.
  • Mr Burns beaked toad is beautifully decorated with orange speckles and blue wavy lines.
  • The long, pointy, nose-like snout of Mr Burns beaked toad gives it a resemblance to the Simpsons television series character Mr Burns, hence its common name.
Loading more images and videos...

Mr Burns beaked toad fact file

Mr Burns beaked toad description

GenusRhinella (1)

The tiny Mr Burns beaked toad (Rhinella sp. nov.) was first discovered by an expedition of scientists from Conservation International and other organisations in 2010, and was named for its unusually long, nose-like snout. This bizarre appendage gives Mr Burns beaked toad a resemblance to the Simpsons television series character Mr Burns, earning the small amphibian its comical common name (1).

This beautiful, newly discovered frog is speckled with orange dots and blue wavy lines (2).The colouration and long snout of Mr Burns beaked toad help disguise it against the dead leaf litter on which it lives (1), and its small size also makes it less visible to predators (3)

Also known as
beaked toad.
Length:  c. 2 cm (1)

Mr Burns beaked toad biology

There is currently no information available on the biology of Mr Burns beaked toad. However, it is believed to lay its eggs on the forest floor, and the eggs are thought to hatch directly into toadlets, thereby skipping the tadpole stage. This behaviour is quite unusual among toad species (1)


Mr Burns beaked toad range

Mr Burns beaked toad was discovered in the Chocó region of western Colombia (2).


Mr Burns beaked toad habitat

The Chocó region of western Colombia where Mr Burns beaked toad was found is mountainous, and covered with thick, intact and unexplored rainforest (4).


Mr Burns beaked toad status

Mr Burns beaked toad is not yet classified on the IUCN Red List.


Mr Burns beaked toad threats

No specific threats to Mr Burns beaked toad are currently known. However, Colombia’s frogs are valued highly by collectors for their striking appearance, as well as for their potential in the pharmaceutical industry. Chemicals in the skin of many amphibians are being studied for potential cures to many human diseases, such as cancer and HIV (5).

It is predicted that the gold mining industry could soon take a greater interest in Colombia. If this were to happen, areas such as Chocó that are becoming safer to visit due to a crackdown on rebel groups could become threatened by habitat exploitation and destruction. Thousands of species within the region could also be extinguished (5).  


Mr Burns beaked toad conservation

Organisation Fundación ProAves is aiming to purchase private land in the Chocó region from farmers, in order to establish guarded amphibian reserves to protect species such as Mr Burns beaked toad (5). No other specific conservation measures are currently known to be in place for Mr Burns beaked toad.


Find out more

Find out more about Mr Burns beaked toad and about the scientific expedition to Colombia:



This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:



  1. Conservation International (2010) Search for ‘lost’ frogs leads to three new amphibian treasures. Conservation International Press Releases, 15 November. Available at:
  2. Moore, R. (2010) Lost frogs update: three new species discovered in Colombia. Conservation International Blog, 16 November. Available at:
  3. Kluger, J. (2010) Top ten new species of 2010. Time Magazine, 9 December. Available at:,28804,2035319_2034045_2034039,00.html
  4. Bergen, M. (2010) Lost frogs: Colombia. Conservation International Articles, 30 September. Available at:
  5. Cooke, L. (2010) In search of the lost frog of Colombia. The Telegraph, 18 November. Available at:

Image credit

Rhinella sp. nov.  
Rhinella sp. nov.

© Robin Moore/iLCP

Robin Moore
Conservation International, 2011 Crystal Drive, Arlington
VA 22202
Tel: 202.360.5339


Link to this photo

Arkive species - Mr Burns beaked toad (Rhinella sp. nov.) Embed this Arkive thumbnail link ("portlet") by copying and pasting the code below.

Terms of Use - The displayed portlet may be used as a link from your website to Arkive's online content for private, scientific, conservation or educational purposes only. It may NOT be used within Apps.

Read more about



MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite Arkive images and videos and share them with friends.

Play the Team WILD game:

Team WILD, an elite squadron of science superheroes, needs your help! Your mission: protect and conserve the planet’s species and habitats from destruction.

Conservation in Action

Which species are on the road to recovery? Find out now »

This species is featured in:

This species is new to science. Visit our newly discovered topic page to learn more.

Help us share the wonders of the natural world. Donate today!


Back To Top