That Reptile Blog – Reptile, Amphibian and Exotic Pet Care and Information

Early spring is a favorite time for amphibian enthusiasts. Here in the northeastern USA, a spectacular event is unfolding, as Wood Frogs, Tiger and Spotted Salamanders, Spring Peepers and others head en masse for their breeding ponds. I’ve been visiting one pond, first shown to me by herpetologist John Behler, for nearly 30 years.  When luck is with me, I can see 3 amphibian species, along with fairy shrimp and other interesting creatures, in a single evening (please see article below).

The small vernal (temporary) pools used by many amphibians are fragile habitats, and quickly spoiled by pollutants; that many are near roads worsens the situation.  With their highly-permeable skins, amphibians are especially sensitive to changes in water quality.  The recent finding that Spotted Salamanders (Ambystoma maculatum) may be evolving defenses against roadside toxins is a rare light at the end of the rather dismal “amphibian conservation” tunnel. Read More »

During my years with the Bronx Zoo, I have twice observed cold temperatures to revive salamanders (a Hellbender and a Greater Siren, please see photo) that seemed, by external appearances, to be quite dead.  A recent paper caused me to think back on these events, and to other examples of low temperatures being used to “treat” ailing Axolotls, Leopard Frogs and other amphibians …I would greatly appreciate your own observations and thoughts on this topic.

Cold Tolerant Amphibians

Many amphibians are well-adapted to surprisingly low temperatures.  On Long Island, NY, Eastern Tiger Salamanders may migrate to breeding ponds in February, and Spotted and Alpine Salamanders will cross snow for the same purpose.  Wood Frogs occur within the Arctic Circle, and I’ve found Gray Tree Frogs hibernating beneath a mere 2” of leaf litter in NYC.  Several Fire Salamanders under my care remained active at 38 F. Read More »

Two frog species recently discovered in southeastern New Guinea are smaller than any other 4-legged vertebrate.  Within their pea-sized bodies, they pack a brain, lungs, heart, digestive system and most of the other organs that people have…simply astounding!

Tiny Frogs and Fish

The frogs, Paedophryne dekot and P. verrucosa, were collected several years ago, but were only described as new species this year (please see ZooKeys article).  Among all the world’s vertebrates, only a single fish, a Southeast Asian relative of the carp (see amazing photo here) is smaller – and the new frogs exceed it in size by only 0.1 mm!  Another contender for the title, a leaf-litter frog from Cuba (please see photo of striped frog), is only a tiny bit larger. Read More »

The Borneo Rainbow or Sambas Stream Toad, Ansonia latidisca, is known only from drawings made by its discoverer, and has not been seen in 87 years.  Extensive development of its only known habitat has long raised fears of its extinction.  This month (July, 2011), however, it became the second of the world’s “Ten Most Wanted” amphibians to be rediscovered.

“Ten Most Wanted”

In 2010, Conservation International launched the Global Search for Lost Amphibians (please see article below).  Since then, several very rare frogs and salamanders have been found, but the tiny Borneo Rainbow Toad has remained elusive.  In fact, only one of the 10 species granted highest priority (the Ten Most Wanted) had turned up – Ecuador’s Spotted Stubfoot Toad, Atelopus balios.  However, a 3-month-long search of the Gung Penrisser Mountains in Sarawak, western Borneo, revealed that the Rainbow Toad is still with us. Read More »

Although no frog can be classified as “easy” to breed in captivity, the Chinese or Oriental Fire-Bellied Toad, Bombina orientalis, is at least “reliable”. Two related species that appear in the trade, the European Fire-Bellied Toad, B. bombina and the Yellow-Bellied Toad, B. variegata, are also regularly bred by hobbyists.

The Oriental Fire-Bellied Toad is the most colorful and readily available of the 6 described species.  Ranging from eastern Siberia to northeastern China and Korea, it makes a wonderful introduction to the fascinating world of amphibian reproduction. They are also among the most interesting anurans that one can keep – owners invariably describe them as “amusing”, and I must agree! Read More »