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"Illustrated Guide to Sharks" Poster by Halakahiki | Redbubble

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"Illustrated Guide to Sharks" Poster by Halakahiki | Redbubble

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Illustrated Guide to Sharks Poster by Halakahiki

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An illustration of the wonderful world of sharks, from past and present. * Millions of unique designs by independent artists. Find your thing.

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"Know Your Cephalopods!" Poster by Halakahiki | Redbubble

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"Know Your Cephalopods!" Poster by Halakahiki | Redbubble

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Know Your Cephalopods! Poster by Halakahiki

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A cute illustration to teach everyone about squishy (and sometimes not-so-squishy) cephalopods! * Millions of unique designs by independent artists. Find your thing.

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"The Illustrated Periodic Table" Poster by Halakahiki | Redbubble

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"The Illustrated Periodic Table" Poster by Halakahiki | Redbubble

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The Illustrated Periodic Table Poster by Halakahiki

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A colorful periodic table for the chemistry aficionado or science classroom! * Millions of unique designs by independent artists. Find your thing.

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Fabulous Frogs | The World's Most Endangered Frogs | Nature | PBS

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Fabulous Frogs | The World's Most Endangered Frogs | Nature | PBS

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Frogs and other amphibians are under pressure. Nearly one-third of the world's amphibians are threatened or extinct, according to a report from the International Union for the Conservation of Nature (IUCN). Habitat loss is perhaps the biggest contributor to these declines. The spread of a fungus called chytrid ( Batrachochytrium dendrobatidis) has also taken a toll, leading to the catastrophic decline or extinction of at least 200 species. At our request, the amphibian specialists at the IUCN put together a list of five frogs that face the greatest risk of extinction. You can catch a glimpse of one of these rare animals, the Titicaca Water Frog, in the upcoming Nature episode Fabulous Frogs.
Macaya Breast-spot Frog
Status: Critically-Endangered
One of the smallest frogs in the world, the Macaya breast-spot frog ( Eleutherodactylus thorectes) is only found on the Formon and Macaya peaks in southwestern Haiti. The species is expected to decline by 80 percent over the next ten years as a result of habitat destruction. Slash and burn agriculture and the logging of trees for charcoal are driving this loss of habitat.

As its name suggests, the Kihansi Spray Toad ( Nectophrynoides asperginis) was once found in the spray of the Kihansi Falls in Tanzania. It is now considered extinct in the wild. A hydroelectric dam built upstream of the falls is blamed for this decline. The dam cut off 90 percent of the original water flow, reducing the volume of spray around the falls and altering the vegetation.

Island Forest Frog
Status: Critically-Endangered

The Island Forest Frog ( Platymantis insulatus) is a native of the South Gigante Island in the central Philippines and inhabits the island's limestone forests and caves. Like a number of frogs, it has no distinct tadpole phase; the larva develops inside an egg until it emerges as a baby frog. The main threat to this species is human encroachment due to guano (bat manure) mining and the quarrying of limestone.

Golden Mantella
Status: Critically-Endangered

The brightly-colored Golden Mantella ( Mantella aurantiaca) lives in the rainforests of central-east Madagascar. Females lay their eggs on the forest floor and the tadpoles that emerge are swept into swamps, temporary ponds and flooded forests. The frog's main threats are habitat loss due to agriculture and logging, but experts also worry about over-collection due to its popularity amongst frog enthusiasts.

Titicaca Waterfrog
Status: Critically-Endangered

True to its name, the Titicaca Water Frog ( Telmatobius culeus) inhabits Lake Titicaca high in the Andes mountain range on the border of Bolivia and Peru. The frog's unusual appearance is due to folds of extra skin that help it absorb oxygen in a high-elevation, low-oxygen environment. The species has declined by 80 percent in the last three generations due to over-harvesting, the introduction of invasive species and environmental pollution.

IUCN Redlist - Amphibians http://www.iucnredlist.org/initiatives/amphibians/analysis
Amphibia Web - An Overview of Chytridiomycosis http://www.amphibiaweb.org/chytrid/chytridiomycosis.html
Encyclopedia of Life - Frogs and Toads http://eol.org/pages/1553/overview
Arkive - Amphibians http://www.arkive.org/amphibians/

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Fabulous Frogs | The World's Most Endangered Frogs | Nature | PBS

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Frogs and other amphibians are under pressure. Nearly one-third of the world's amphibians are threatened or extinct, according to a report from the International Union for the Conservation of Nature (IUCN). Habitat loss is perhaps the biggest contributor to these declines. The spread of a fungus called chytrid (Batrachochytrium dendrobatidis) has also taken a toll, ...

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frog sounds

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Animals - The Cincinnati Zoo & Botanical Garden

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Animals - The Cincinnati Zoo & Botanical Garden

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Animals - The Cincinnati Zoo & Botanical Garden

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Animal Guide | Columbus Zoo And Aquarium

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Animal Guide | Columbus Zoo And Aquarium

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Animal Guide | Columbus Zoo And Aquarium

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Frogs: Frog Facts, Myths & More | Exploratorium

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Frogs: Frog Facts, Myths & More | Exploratorium

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Frogs: Frog Facts, Myths & More | Exploratorium

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Frogs @ The Exploratorium: An online exhibition exploring the amazing, adaptable frog.

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While updates to the amphibian database have been incremental, there has not been a major comprehensive amphibian assessment since 2004. However, the global overview provided by the 2004 assessment remains relevant, and it is still accessible in depth at this website.

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Photo Ark is a multiyear effort to document every species living in zoos and wildlife sanctuaries, inspire action through education, and help save wildlife by supporting on-the-ground conservation efforts.

National Geographic photographer Joel Sartore started the Photo Ark in his hometown of Lincoln, Nebraska, in 2006. Since then, he has visited more than 50 countries and photographed more than 11,000 species in his quest to create this photo archive of global biodiversity.

No matter its size, each animal is treated with the same amount of affection and respect. The results are portraits that are not just stunningly beautiful, but also intimate and moving.

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Photo Ark is a multiyear effort to document every species living in zoos and wildlife sanctuaries, inspire action through education, and help save wildlife by supporting on-the-ground conservation efforts. National Geographic photographer Joel Sartore started the Photo Ark in his hometown of Lincoln, Nebraska, in 2006.

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Your destination for news, pictures, facts, and videos about amphibians.

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Amazing Amphibian Species-Featured Frog, Toad, Salamander Species

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Amazing Amphibian Species-Featured Frog, Toad, Salamander Species

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Biodiversity is the backbone of all life on earth and Amazing Amphibians celebrates some of the amazing amphibians around us, promote the fantastic work taking place to protect them and highlight the areas we still need to work on.

Amazing Amphibians was inspired by the widely popular "Amazing Species" weekly web initiative which is run by the Species Survival Commission and supported by the IUCN Global Species Programme to increase the awareness of our globally threatened species.

It was a collaborative effort between:

Focal Partners

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Amazing Amphibian Species-Featured Frog, Toad, Salamander Species

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Biodiversity is the backbone of all life on earth and Amazing Amphibians celebrates some of the amazing amphibians around us, promote the fantastic work taking place to protect them and highlight the areas we still need to work on.

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AmphibiaWeb connects people around the world by synthesizing and sharing information about amphibians to enable research, education, and conservation
Newsletter Sign Up

Species of the Week
Oophaga sylvatica | Diablito Photo © Brad WilsonAmphibian News Archive

The world's tropical rainforests hold the highest amphibian biodiversity, and increasing habitat modification and fragmentation in these ecosystems have untold cascading impacts on local food webs. Moskowitz et al. (2020) sheds light on how the replacement of tropical rainforests with pasture lands affects chemical defenses in Oophaga sylvatica through changes in prey item composition. The study, which was conducted with two U.S. high school science classes, examined how leaf litter, leaf litter invertebrate communities, and alkaloids in O. sylvatica related to each other in the two environments. Their results showed significant differences in diet and alkaloid profiles in frogs based on land changes. Furthermore, their findings indicate that O. sylvatica have a dietary preference for specific ant species that are not as common in pasture lands as in forests. These findings have real-world implications for the management of this Near Threatened species as their aposematic coloration may be uncoupled from their chemical defense.

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AmphibiaWeb connects people around the world by synthesizing and sharing information about amphibians to enable research, education, and conservation Newsletter Sign Up Species of the Week Oophaga sylvatica | Diablito Photo © Brad WilsonAmphibian News Archive The world's tropical rainforests hold the highest amphibian biodiversity, and increasing habitat modification and fragmentation in these ecosystems have untold cascading impacts on local food webs.