To biologists’ delight, the Azuay stubfoot toad, believed to be extinct after its last sighting in 2002, has just leapt back to life.

Effects of pathogens on host life-history characteristics can be influenced by changes in the immune system that occur during development as well as by environmental factors that negatively affect immune system function. Amphibians worldwide are experiencing population declines from chytridiomycosis caused by the fungal pathogen Batrachochytrium dendrobatidis. Disease outbreaks can be influenced by timing of exposure to B. dendrobatidis and by abiotic factors, such as pesticides, that could influence susceptibility. To examine the effects of larval pesticide exposure and timing of B.

Many of world’s frogs may be at risk of extinction, but something new always hops up in the amphibian world.

The Arabian Peninsula is home to a unique fauna that has assembled and evolved throughout the course of major geophysical events, including the separation of the Arabian Plate from Africa and subsequent collision with Eurasia.

When it comes to vaccinating their babies, bees don't have a choice - they naturally immunise their offspring against specific diseases found in their environments, scientists say.

Four new species of tooth-frog have been identified in West Africa, over 100 years after initially being identified as one single species Odontobatrachus natator.

The oft-repeated claim that Earth’s biota is entering a sixth “mass extinction” depends on clearly demonstrating that current extinction rates are far above the “background” rates prevailing in the five previous mass extinctions. Earlier estimates of extinction rates have been criticized for using assumptions that might overestimate the severity of the extinction crisis. We assess, using extremely conservative assumptions, whether human activities are causing a mass extinction.

HCM CITY (VNS) — A bat with nightmarish fangs (Hypsugo dolichodon), the world's second longest insect (Phryganistria heusii yentuensis) and a colour-changing thorny frog (Graciaxal lumarius) were a

Tiny frogs smaller in size than bumblebees have evolved with fewer fingers and toes to reduce their size to adapt to life on isolated mountaintops

Rena Gaborov was looking for gliders during a night-time survey in the East Gippsland forest near Bonang when she first heard the call. It stopped her in her tracks.

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