Wood Frog
Wood Frog
Lithobates sylvaticus
Amphibia
COMMON

Stats

Lifespan
3-5 yrs
Size
Small
Diet
Insectivore
Activity
Nocturnal
Social
Solitary
Biome
Temperate forest
Range
North America
Movement
Hopping
Breeding
Egg-laying
Defense
Camouflage
Status
Common

About

The wood frog is a freeze-tolerant amphibian found across North America as far north as the Arctic Circle, able to survive winter with up to 65% of its body water frozen solid by flooding its cells with glucose as a natural antifreeze. It is easily recognized by the dark 'robber's mask' patch across its eyes.

Life cycle

  1. 1.
    egg
    A jelly-coated egg is laid in water and develops over days into an aquatic larva.
  2. 2.
    tadpole
    A gilled tadpole swims and grazes on algae, slowly absorbing its tail and growing limbs.
  3. 3.
    juvenile
    A near-adult amphibian leaves the water with new legs and lungs, smaller than the mature form.
  4. 4.
    adult
    Fully grown at adult size, breathing air.

Learn more

Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Amphibia
Order
Anura
Family
Ranidae
Genus
Lithobates
Species
Lithobates sylvaticus