Frogs

A City Frog's Love Song Attracts More Mates Than Countryside Croaks

Fewer predators and heightened competition for mates allowed urban tungara frogs to add more notes and frills to their calls, with big results Read more: h

Scientists Make Match.com Profile for Bolivia’s Loneliest Frog

‘Romeo’ the Sehuencas water frog may be the last surviving member of his species

Once common along highland streams in Costa Rica and western Panama, the variable harlequin frog, Atelopus varius, is now endangered throughout its range, thanks in large part to a disease caused by the amphibian chytrid fungus.

These Captive-Bred Frogs Are Facing Predators and the Chytrid Fungus to Make It in the Wild

Scientists in Panama release 500 harlequin frogs, some wearing transmitters, in a first attempt to reintroduce the endangered species

7,500 frogs captured by smugglers were rescued from their trips to plates

Thousands of Turkish Frogs Rescued From Smugglers

A delicacy often exported to European countries, frogs are a tightly regulated commodity in the country

Two tree frogs share an intimate moment. The eye-popping yellow of the male only emerges in mating season.

The Color-Changing Marvel of Tree Frogs Looking for Love

A new study sheds light on the wild world of "dynamically dichromatic" amphibians

A female Limosa harlequin frog sports a miniature radio transmitter.

A Pioneering Force of Harlequin Frogs Set Out to Help Save Their Species

Outfitted with tiny transmitters, these frogs are released to face the challenging chytrid fungus that decimated their populations

Hyalinobatrachium yaku

This Glass Frog’s Heart Is Visible Through Its Skin

The new species of frog has a transparent underside, offering a glimpse of its beating heart inside

The slimy skin of Hydrophylax bahuvistara harbors antimicrobial powers

This Frog’s Slime Kills Flu Viruses

But don’t go kissing frogs just yet

Fascinating: How Transparent Glass Frogs Mate

First, the female collects water from a leaf in order to hydrate the eggs inside her. then releases them for the male to fertilize

Researchers Find the First Naturally Fluorescent Frog Species

The polka-dot tree frog emits a blue-green glow under UV light, which is an unusual feature for land-dwelling critters

Panamanian golden frog (Atelopus zeteki)

Here's Why You Should Never Kiss a Toad

A scientist at Smithsonian's Tropical Research Institute helped catalog everything known about toxins in the skins of endangered frogs and toads

Frogs have a sticky secret: spit.

Special Spit Helps Frogs Get a Grip on Insects

Secretly sticky spit snatches snacks, study shows

Gotcha! A frog's tongue can be five times faster than the blink of a human eye.

Inside Every Frog's Mouth Is a Sticky, Grabby Bullet

Investigating frog tongues—and some human ones!—in the name of science

Swabbing the toads to sample their microbiomes.

Meet the Colorful New Weapon Scientists Are Using to Save Toads From a Devastating Fungus

Researchers are supplementing the amphibians’ natural microbiomes with a fluorescent fungus-fighter they've dubbed "Purple Rain"

DFB 45, Arès, Brandon Ballengée, 2008. Scanner photograph of cleared and stained multi-limbed Pacific Tree frog from Aptos, California in scientific collaboration with Dr. Stanley K. Sessions. Title in collaboration with the poet KuyDelair.

With Deformed Frogs and Fish, a Scientist-Artist Explores Ecological Disaster and Hope

A 20-year retrospective of Brandon Ballengée's artwork explores humans' connection to cold-blooded creatures

Toughie

Adiós, Toughie: The Last Known Rabb’s Fringe-Limbed Tree Frog Dies in Atlanta

Since his discovery in 2005, Toughie the frog has been the face of amphibian extinction

A pair of Scinax alcatraz frogs discreetly lay their eggs in a water-filled plant.

When Frogs Pull the Curtain: The Benefits of Mating in Secret

Smithsonian's new curator of frogs explains why some frogs seek privacy when they mate

You ain't seen nothing yet.

There’s No Wrong Way to Make a Tadpole (or Froglet)

Marsupial frogs, “vomit frogs” and foam-spewers reveal the glorious range of frog baby-making techniques

A male Bombay night frog getting his call on.

The Frog Kamasutra Gains a Chapter, Thanks to Camera-Wielding Biologists

One newly described sexual position for frogs could mean one giant leap for frog conservationists

Scientists Rediscover a Tree Frog Thought to Be Extinct for Over a Century

Last seen in 1870, Jerdon’s tree frog is alive and (mostly) well in India

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