Post Tagged with: "Argentina"

A fluorescent frog!

A fluorescent frog!

Amphibians, News in Nature March 18, 2017 at 9:46 am

Scientists believe they may have discovered a first in the animal kingdom – a fluorescent frog that emits a bright, colorful glow once exposed to ultraviolet light. The South American polka dot tree frog appeared as a common-looking frog to the researchers, but when they analyzed the amphibian closely, they discovered that when placed under an ultraviolet light it glows in a bright blue-green light.   Hyloin, molecules in the animals’ lymph tissue, skin and glandular secretions were responsible for the green fluorescence.  Hyloin appears to be a unique mechanism of fluorescence in animals.  

A New Flatworm from the Argentinian Atlantic Forest

A New Flatworm from the Argentinian Atlantic Forest

Invertebrates, New Species August 20, 2016 at 9:17 pm

This land planarian is large, exceeding 5 cm in length. Dorsal view of a live specimen of Cratera viridimaculata (anterior end to the left). Scale bar: 10 mm. Negrete & Brusa (2016).

A new species of the banjo catfish

A new species of the banjo catfish

Fish, New Species March 18, 2016 at 10:08 am

A new species of the banjo catfish genus Amaralia is described from the Paraná-Paraguay River Basin in central-western Brazil, Paraguay and northern Argentina.