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Frogs are found all over the world, except Antarctica.

Frog

Frogs are found all over the world, except Antarctica.

The heart and lungs of a frog. 1: Heart. 2: Arch of the aorta. 3: Pulmonary artery. 4: Pulmonary veins. 5: Aorta. 6: Vena cava.

Frog

The heart and lungs of a frog. 1: Heart. 2: Arch of the aorta. 3: Pulmonary artery. 4: Pulmonary veins.…

The green-tree frog is distinguished by suckers under its toes which enables him to cling to any tree surface.

Green-tree frog

The green-tree frog is distinguished by suckers under its toes which enables him to cling to any tree…

An illustration of young frogs sitting in rows looking at an adult frog in a suit.

Frogs Sitting in Rows Looking at Frog in Suit

An illustration of young frogs sitting in rows looking at an adult frog in a suit.

An illustration of two mice and a frog sitting on a bench and drinking from mugs.

Mice & Frog Drinking From Cups

An illustration of two mice and a frog sitting on a bench and drinking from mugs.

In the land salamander, the body is black and warty with long irregular yellow spots distributed over the head, back, sides, feet and tail.

Salamander

In the land salamander, the body is black and warty with long irregular yellow spots distributed over…

Toads have thicker skin than frogs.

Toad

Toads have thicker skin than frogs.

Toads are similar to frogs but generally are more squat and sedentary.

Common Toad

Toads are similar to frogs but generally are more squat and sedentary.

This toad is oviparous. She lays eggs, and the male piles them upon her back where they develop inside and atop her skin.

Surinam toad

This toad is oviparous. She lays eggs, and the male piles them upon her back where they develop inside…