The eggs of the northern leopard frogs take about two to 17 days to hatch into small tadpoles. Time taken for hatching depends on the temperature. The length of time required for metamorphosis, or the development of the aquatic tadpole to a frog, is variable.

Mar 7, 2018 · If you can identify Leopard Frog eggs you can identify Pickerel Frog eggs. The egg masses are almost exactly the same except instead of the eggs being black on top and white on bottom, Pickerel Frog eggs are brown on top and yellow on bottom, which is unusual for amphibians that lay eggs in the open.

Within 2-3 days, the female lays the eggs—several hundred to several thousand— in an egg mass that measures 7.5-15 cm (3-6 in) across. Release of the eggs stimulates the male to ejaculate, and the eggs are fertilized. Tadpoles hatch in about a week and metamorphose in about three months.

The female lays an egg mass that is "baseball-sized" when close to hatching time, and contains up to 1500 eggs. [12] Some larva , eggs and embryos may be exposed to pesticides during their development causing significant mortality and developmental deformity.

Aug 28, 2018 · While in mourning she was walking among the bare, muddy fields near her home when she came upon a ditch that separated two fields. In the water of the ditch, she saw a mysterious dark object which turned out to be a mass of frog eggs.

The Northern Leopard Frog eggs take 2 to 17 days (depending on the temperature) to hatch into tadpoles. The tadpoles usually complete the process of metamorphosis within 3 to 6 months. However, at one particular location the tadpoles were recorded to have completed their transformation within 50 days of hatching.

Females can lay more than 6,000 eggs which may vary from submerged egg masses in northern populations to a surface film of eggs in southern populations. The black eggs are attached to aquatic vegetation. By early August, the young frogs leave the water to feed on land.

Spotted frogs have a thicker jelly coat around the eggs and therefore the eggs do not appear tightly packed within the mass (except when the egg mass is first laid). For more details about the northern leopard frog, see the Washington Herp Atlas (PDF) .

Interestingly, southern leopard frog eggs will hatch earlier than normal when predators are nearby, which may help increase survival rates of frog offspring. Throughout their range, leopard frogs are frequently encountered by people en-gaged in outdoor activities near water.

Typical Number of offspring is 600 eggs. The evolution of parental care in frogs is driven primarily by the size of the water body in which they breed. Those that breed in smaller water bodies tend to have greater and more complex parental care behaviour.