Amphibians
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![The frog Corythomantis greeningi has venomous spikes on its head that deliver toxin to would-be predators.](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/7RPKxHMzVzxhTkFdvExNXR-320-80.jpg)
Frogs from Hell: Their Venomous Head Spikes Could Kill You
By Charles Q. Choi published
In the wilds of Brazil, researchers have discovered the first frogs with venomous spikes on their heads. Just a gram of this venom could take down tens of humans or thousands of mice.
![N. madreselva's distinctive markings include a dark brown "face mask."](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/w92dut3Vnk4DvTLoGTYYsG-320-80.jpg)
New Jelly-Bean-Size 'Masked' Frog Discovered in the Andes
By Stephanie Pappas published
A cute new Andean frog has a dark-brown "face mask" and a white mottled belly. The little guy is not much bigger than a jelly bean.
![Ensatina salamanders](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/gGuHuaiVQZZ4k4EcH6Hc8c-320-80.jpeg)
Deadly Fungus Could Threaten US Salamanders
By Stephanie Pappas published
An emerging infectious fungus that causes salamanders to die in droves could soon land on North American shores, scientists warn.
![A new species of Brachycephalus from Brazil is dwarfed by a human fingertip.](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/ejDtEFXZ5dxh3CztfdHUVG-320-80.jpg)
Squee! New Absurdly Tiny Frogs Found in Brazil
By Stephanie Pappas published
Each smaller than a thumbnail, seven new species of frog have been discovered in the cloud forests of Brazil. Some have warty coverings while others are smooth with spots.
![costa rican frog](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/vKA7hjskQQPzCeJ99mKjNX-320-80.jpg)
Kermit the Frog Look-Alike Among 5 New Species Uncovered
By Laura Geggel published
The planet is crawling with critters, but scientists are meeting some of them only just now.
![costa rican frog](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/vKA7hjskQQPzCeJ99mKjNX-320-80.jpg)
Kermit the Frog Look-Alike Discovered in Costa Rica
By Megan Gannon published
The inch-long species, scientifically named Hyalinobatrachium dianae, joins Costa Rica's 13 other glass frogs.
![Mutable rain frog](https://cdn.statically.io/img/cdn.mos.cms.futurecdn.net/87XMYR7hiW2QsnY7wZUoma-320-80.jpg)
Shape-Shifting Frog Can Change Its Skin Texture
By Becky Oskin published
A fingernail-size frog that can morph its skin texture from spiny to smooth in just minutes is the first shape-shifting amphibian ever found, according to a new report.
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