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“It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small.” – Neil Armstrong (1930-2012)

Fresh Reads from the Science 'o sphere!

Thursday, April 10, 2008

Lungless Frog

A team of Singapore and Indonesian scientists, led by Dr. David Bickford at the NUS, has discovered a species of frog that has no lungs.

The frog, named Barbourula kalimantanensis, was found at two mountain rivers in Kalimantan last August. It breathes exclusively through its skin.












Scientists postulate that lungs first emerged in fish, possibly as an auxiliary breathing structure, approximately 400 million years ago.

This primitive lung later diverged into the swim bladder in fish, and the characteristic two-lobed lung present in almost all land vertebrates.

Land vertebrates that have lost their lungs are extremely rare - only two groups of salamanders and a single species of caecilians do not have lungs.


Would you like to know more?
-
The Biodiversity Crew @ NUS
- The frog which loses its lungs (NUS Research Gallery)

2 Comments:

Anonymous said...

Wah piang... this article is so cool...

Thank you! And keep it coming!

Supporter

Lim Leng Hiong said...

Welcome to Fresh Brainz, and thanks for your support!