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Contains articles and advice on a wide variety of frog species. Answers and addresses questions on species husbandry, captive status, breeding, news and conservation issues concerning frogs.

Pet Frogs – the Best Species for Children and First Time Keepers

Hello, Frank Indiviglio here.  Many of the world’s nearly 6,000 frog species make wonderful pets that may live for 10, 20 or even 50 years.  Among them we find creatures that glide, brood their eggs in vocal sacs, form lifelong pair bonds and exhibit other fascinating behaviors.  While the smallest is barely as large as a pea, the nine-pound African Bullfrog can chase lions away from its tadpoles!  Today I’d like to introduce some of my favorites, each of which is hardy enough for beginners yet so interesting that herpetologists – myself included – regularly keep them as pets.  Please be sure to let me know about your own “best pet frogs” by posting below.

Frog Care

White's treefrog

Uploaded to Wikipedia Commons by LiquidGhoul

Even the toughest of frogs have specific care needs that must be met if they are to thrive.  The following information is meant to illustrate why one should consider a particular type of frog.  It is not a complete care guide…please be sure to post below for detailed information about keeping and breeding these or other frogs. Read More »

Treefrog Facts – An Introduction for Pet Keepers

Hello, Frank Indiviglio here.  The world is home to a mind-boggling assortment of fascinating treefrogs, many of which make wonderful pets.  Included among the 1,200+ species that have adapted to life above-ground we find tiny, colorful gems, giants that will feed from one’s hand, gliders that sail through the treetops and a host of other delightfully unique frogs.  Some, such as Red-Eyed and White’s Treefrogs, are pet trade staples.  New species become available frequently…in recent years, for example, the bizarrely-beautiful Amazon Milk and Mossy Treefrogs have become “must haves” among serious frog enthusiasts.

White’s, Red-Eyed, Lemur, Green, Reed, Waxy Monkey, Mossy, Cuban, Asian Flying, Barking, White-Lipped and dozens of other treefrogs are available in the pet trade.  An understanding of their natural history – how they live in the wild – is the first step in learning to provide them with proper care in captivity.  This article will introduce you to their habits and habitats.  The articles linked below provide specific information on their care and habits of some unusual species.  Please be sure to post questions about the care of specific species below.

Range

Waxy Monkey Treefrog

Uploaded to Wikipedia Commons by Brocken Inaglory

Treefrogs are found on every continent except Antarctica, and have adapted to rainforests, temperate woodlands, arid semi-deserts, human dwellings and many other habitats.  I’ve found Gray Treefrogs in the heart of Manhattan and Cuban Treefrogs in downtown Miami, where their favorite “habitat” earned them the now-dated name “Phone Booth Frogs”.

 

Treefrogs that Break the “Frog Breeding Rules”

Some treefrogs deposit their eggs on leaves over water, while others breed in tree hollows in the forest canopy.  It was recently discovered that the tadpoles of India’s Brown Leaping Frog live on tree limbs and eat bark, while those of the Fringe-Limbed Treefrog actually devour their father’s skin (no worries…it grows back!).  Please see the articles linked below for more information on these two bizarre creatures. Read More »

The Best Foods for Poison Frogs, Mantellas and Other Tiny Amphibians

Hello, Frank Indiviglio here.  I began working with Poison Frogs and Mantellas in zoos just as the secrets to longevity and breeding were being discovered.  Today, captive-bred animals are almost mainstream.  This is wonderful, but there is a downside – they are sometimes viewed as “simple to keep”.  But while these tiny gems can be surprisingly hardy, they will not thrive long-term if their unique nutritional requirements are not met.  Friends of mine who have broken new ground with Poison Frogs – in one case years before most zoos did – have always expended a great deal of effort on providing a varied diet.  The following information is drawn from their and my own experiences over several decades, and may also be applied to the care of many other small and newly-transformed amphibians.

General Considerations

Golden Poison frog

Uploaded to Wikipedia Commons by Marcel Burkhard

Although we do not know the exact nutritional needs of any species, certain principles have become evident.  Chief among these is that a highly-varied diet is essential. Crickets alone, even if powdered with supplements, are not an adequate diet.  There are exceptions, but nearly every study of free-living amphibians reveals that a surprising range of prey species are consumed. Read More »

Best Tadpole Foods (Based on my Experiences) – Seeking Additional Suggestions

tadpoleHello, Frank Indiviglio here.  Breeding frogs and rearing tadpoles is one of the most enjoyable aspects of our hobby, and becoming ever more important to the survival of many species.  In the course of working with numerous species at home and in zoos, I’ve compiled a list of commercial foods that have proven especially useful as tadpole foods.  The variety of new food items that have appeared and the many frog species that have been recently bred by hobbyists have convinced me that it’s time to reach out see what new “wonder products” or ideas folks have tried. I have, therefore, highlighted some of the foods I’ve come to rely on, and would greatly appreciate hearing of your experiences with them and others. Thank you.  

The Amazing Specialists

While the tadpoles of many commonly bred frogs (i.e. White’s Treefrog, Litoria caerulea) are omnivorous and take a variety of foods, others are specialists and will not survive unless their exacting requirements are met.  The tadpoles of African Clawed Frogs, Xenopus laevis and Malayan Leaf Frogs, Megophrys nasuta, for example, are filter feeders, while those of the African Bullfrog, Pyxicephalus adspersus, are as carnivorous as their pugnacious parents.  Poison Frog tadpoles of several species feed upon unfertilized eggs deposited by their mother, Goliath Frog, Conraua goliath, tadpoles consume a single species of algae, Fringe-Limbed Treefrog (Ecnomiohyla rabborum) tadpoles eat their father’s skin,  Brown Leaping Frog (Indirana semipalmata) tadpoles gnaw on wood (high up in trees!) …the list is fascinating.  Please post below if you would like information on these or other species. Read More »

The World’s Largest Frog – Working with the Massive Goliath Frog

Goliath FrogHello, Frank Indiviglio here. As a child, my information on the Goliath Frog, Conraua goliath, was limited to a few brief sentences hidden away in various books, but this was enough to spark my interest.  Eventually, a life-sized sculpture of one at the American Museum of Natural History (please see photo) gave me some idea of just how impressive a creature it was, and my desire to learn more intensified.  Happily, I found a job at the Bronx Zoo shortly after a group of Goliath Frogs arrived there from Cameroon, and I was able to indulge my passion.  One of my new charges spanned 25 inches with legs extended…nothing, not even the enormous African Bullfrogs and Marine Toads (or, for that matter, Leatherback Turtles!) that I had already handled prepared me for the sight of that amazing animal.

The Goliath Frog Exhibit

I first started working with Goliath Frogs in 1983, at which time we knew little about their natural history or captive needs. Unfortunately, not much has changed since, although field research completed in 1985 (Sabater-Pi, Contribution to the Biology of the Giant Frog, Amphibia-Reptilia, 6(2), 143-153) has filled in some of the blanks. 

The new Goliath Frogs, collected as adults in Cameroon, were shy and high strung, and prone to wild, injury-producing leaps when disturbed. We assumed, therefore, that the zoo’s noisy, crowded Reptile House would not prove an ideal location for their exhibit. Therefore, the curator commandeered an exhibit at the relatively-ignored Aquatic Bird House. Goliath Frogs are habitat specialists, so their exhibit was arranged accordingly, and outfitted with a waterfall and a swift, rocky stream bordered by dense thickets of live plants. In keeping with what little information was available, the water was maintained at a slightly acidic pH. Read More »

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