When it is time to mate, frogs assemble at a body of water. Males arrive first and call females to the site. In the reproductive act, the male mounts the female and fertilizes the eggs as the female releases them. In some species, the adults then abandon the eggs.Know More
One type of breeding, known as prolonged breeding, involves frogs assembling annually at lakes, streams or ponds. Often, large numbers of frogs migrate back to the bodies of water where they were conceived and became larvae. In such cases, males acquire territories they defend from other males. When croaking to attract females, larger frogs tend to have deeper voices than smaller frogs, and these draw females more easily than younger, smaller frogs. Sometimes, males known as satellites wander without territory and intercept females or take over territories abandoned by exhausted calling males.
Some species are considered explosive breeders and converge on suitable breeding pools when one is found by a male. In these cases, the frogs croak in unison to create a very loud noise. Sometimes conditions may not be right, and frogs may go two to three years without mating.
Once the eggs are fertilized, they float freely, become attached to plants or sink in the water. Tadpoles hatch from the eggs within a few days to a week. Depending upon the species, within a few months to a few years, the tadpoles fully metamorphose into frogs, developing lungs and limbs, losing their tails, and altering their jaws and digestive systemsLearn More
Frogs are vertebrates because they have a full skeletal structure that includes a spinal cord. The term vertebrate is derived from the word “vertebrae,” which is a bone in the spinal cord.Full Answer >
According to The Exploratorium, many, but not all, frogs have webbed feet. The back feet of frogs that live around water are webbed. Both front and back toes of Costa Rican flying frogs have webbing that helps them sail between trees. Tree frogs have sticky pads instead of webbing.Full Answer >
Frogs primarily croak to advertise their fitness to perspective mates. The males are responsible for the vast majority of the croaks heard in a typical chorus, but the females of some species can also create vocalizations. When a female hears a frog with an attractive call, she approaches him and allows him to mount her and achieve amplexus.Full Answer >
Where frogs hibernate depends on the species, with terrestrial types burrowing underground or hiding in logs and rocks, and aquatic types hibernating underwater. Unlike some turtle species, aquatic frogs do not hibernate in mud below the water's surface. They are more likely to sit or periodically swim atop it.Full Answer >