It is sometimes possible to tell if a frog is male or female by differences in the size and color of the frog. Most female frogs are larger than male frogs. The female red-eyed tree frog is not only larger than the male but is olive green and blue, while the male is pale green. Some scientists can tell male and female frogs apart by the size of their eardrum.Continue Reading
Differences between male and female frogs can be seen when the frogs reproduce. When frogs gather to breed around ponds or other bodies of water, the ones that are chirping or croaking are the males. They do this to attract females, guard their territories and intimidate other males. If two frogs are in the water and one is on top of the other and grasping the bottom frog around the middle, the top frog is male.
Sometimes the difference is seen by watching their parental care. If a gray toad is seen carrying eggs on its back legs, it is probably a male midwife toad. With pouched frogs, both males and females guard the eggs, but when they hatch, the male gathers the tadpoles in pouches on his body where they grow into tiny frogs.Learn more about Frogs
As your tadpole undergoes metamorphosis into an adult frog, it is very important to provide simple access from the water to land. Since gills stop functioning with the onset of lungs, developing animals may drown if they are unable to easily climb to land.Full Answer >
Pithed frogs have undergone the pithing procedure, which involves a needle inserted through the foramen magnum into the cranial cavity. Pithing mechanically causes disruptions within the frog's brain, and it is an approved euthanasia method for amphibians.Full Answer >
To dissect a frog, pin it to a tray, cut and retract the abdominal skin, remove portions of the ribcage, and pin back the abdominal muscles. This process takes about 45 minutes and requires a preserved frog, a dissecting tray, straight pins, a scalpel, dissecting scissors and forceps.Full Answer >
A frog breathes through its skin, the inner surface of its mouth and its lungs, depending on its circumstances. When their skin is moist, and particularly when they are in water where it is their only form of gas exchange, they breathe through their skin. When it is necessary, such as on land, they take air into their lungs by pushing it from their mouths with their nostrils closed.Full Answer >