VOICED : El sapo ecuatoriano que rompió el silencio con canto después de un siglo

For decades, scientists believed a small frog species was mute until a biologist heard its unique bird-like song in 2016. This discovery, published in Neotropical Biodiversity, challenged the notion that the species couldn't sing due to its vocal anatomy. The frog, known as the Valle de Santiago toad, lacks vocal slits and sacs, making its singing ability unique. Found in the Amazonian ranges of Cutucú and Cóndor, it measures 45-68 mm and has a distinctive nasal prominence. The discovery suggests all toad species might sing, challenging previous assumptions about silent groups. In other species, croaking is linked to courtship and territory defense, but for these toads, it's an announcement, akin to a calling card.

What was the initial belief about the frog species discussed in the video?

• It was known for its bird-like singing.

• It was thought to be mute.

• It was believed to be a loud croaker.

• It was considered the largest frog species.

What makes the frog's call unique compared to other frogs?

• It is completely silent.

• It is louder than any other frog's call.

• It mimics the sound of a waterfall.

• It resembles a bird's trill.

What is unique about the anatomy of the sapo del Valle de Santiago?

• It lacks vocal slits and sacs.

• It has the largest vocal cords.

• It can change its skin color.

• It has vocal sacs like other frogs.

Where is the sapo del Valle de Santiago primarily found?

• In the wetlands of Europe.

• In the forests of North America.

• In the Amazonian ranges of Cutucú and Cóndor.

• In the deserts of Australia.

What broader implication does the frog's call suggest about frog species?

• Frogs use calls only for hunting.

• Only some frogs can vocalize.

• All frog species might have the ability to vocalize.

• All frogs are completely silent.