No, the numbers are not equal.

• Oviparous animals (egg-laying) – Lay a large number of eggs because survival chances are low. Many eggs/young die due to predators or lack of care.
• Viviparous animals (give birth to young) – Produce fewer offspring, but they are protected inside the mother’s body and have higher survival chances.

So, oviparous = more eggs but less survival; viviparous = fewer young but better survival.