Welcome to Lincoln Park Zoo’s new web app! Share your feedback

Amazon Milk Frog

Regenstein Small Mammal-Reptile House

Did You Know?

  • Amazon milk frogs are not called that because of their milky blue-gray coloring. Instead, their name refers to a poisonous, milky-looking secretion that comes out of the skin when they are threatened.
  • Their toe pads can hold up to 14 times the frog’s body weight, allowing these small amphibians to easily climb plants.
  • Females can lay up to 2,000 eggs at a time.

Don’t See the Animals?

Why aren’t animals visible at all times? To promote positive animal welfare, we provide animals with choices. They can choose to spend time in areas that are out of public view.


Take an Animal Home with You

Visit Gift ShopShop Online


Scientific Name: Trachycephalus resinifictrix

Class: Amphibians

Diet: Insects and small invertebrates

Range: Northern South America, along the Amazon Basin

Endangered Status: Least Concern

More Information

Amazon milk frogs are blue-gray with darker gray patterns and irregular stripes on their legs. They are small, measuring up to 4 inches long on average. They live in tropical rainforests and mostly spend their time in trees.

During breeding season, males can be loud as they call for mates. Males also compete for the use of water-filled tree cavities, where females will lay their fertilized eggs. Tadpoles emerge just a day later.

Hold Camera Steady with QR in focus.

We need permission to use your camera for QR codes.

Having Trouble?

Find code numbers below QR codes at exhibits and animals.