Why do leopard frogs come in two colors?

The persistence of two colors everywhere suggests a balance of evolutionary forces

Northern Leopard Frog

Northern Leopard Frog Facts

Hinterland Who's Who - Northern Leopard Frog

Northern Leopard Frog (Rana pipiens) – Cowling Arboretum – Carleton College

Northern Leopard Frog, Lithobates pipiens

Ohio's 15 species of frogs and toads at a glance

Salt and pepper adds spice to spring

Leopard frog, Habitat, Diet & Calls

Northern Leopard Frog

Leopard frog - Wikipedia

Northern Leopard Frog

Nature Notes: Grounded - Leopard Frogs at Kankakee Sands

Southern Leopard Frog – Discover Herpetology