A female bullfrog may lay 10,000 eggs that hatch into these, which may take 2 years to grow into bullfrogs
Both male and female frogs return to the same pond year after year, probably ... 
Eggs & Frog Spawn: Each frog egg is 2-3mm in diameter and is enclosed in an... [DOC] [TLE] There&#39;s Big Money in the Secret Art of Frog Farming [PAR] The male bullfrog has larger eardrum "circle" that his mate.