Male frog climbs onto female and clings on for days, battling other males, depositing sperm on eggs when layed in water
Life cycle of wood frog
3. Hindlegs, disappearance of gills
4. Adult with developed lungs on land
Moist place on land
Eggs are placed there, such as under a rock, inside rotting log, in a tree, etc.
hormone which circulates throughout blood stream, stimulates metamorphosis.
lack thyroxine, stuck in a limbo stage between tadpole and adult
some Amphibians remain with eggs to guard from predators until they hatch. Some put eggs in mouth, swallowing them, hatch inside, mature, walk out after that stage.