Frog Embryology refers to the study of the development of frogs from the formation of the gametes to hatching of their offspring. Frog embryology has been studied extensively due to the similarities between the molecular and cellular processes of frog embryology and human embryology. One of the critical components of the frog egg is its yolk distribution, which plays a crucial role in the development of the organism. Frog egg has a moderate amount of yolk (mesolecithal) distributed unequivocally within the egg with the vegetal pole having more yolk than the animal pole. The upper hemisphere of the egg — the animal pole — is dark. The lower hemisphere — the vegetal pole — is light. Frog embryology is a complex process of fertilization, cleavage and gastrulation that leads to the formation of an adult frog