What kind of births are recognized in Buddhism? There are different kinds of birth in Buddhism, depending on what realm one is reborn in.

What are these kinds of birth?
In the Theravada Abhidhamma, four different kinds of birth are recognized1, namely:


egg-born beings (Aṇḍaja), such as birds, fish and reptiles. 
womb-born beings (Jalābuja), such as mammals. Egg-born beings are also included in this category. 
moisture-born beings (Saṃsedaja), includes certain lowly forms of animals, such as worms.
spontaneously-born beings (Opapatika), such as petas and devas. These beings are generally invisible to the physical eye. 




1  Comprehensive Manual of Abhidhamma, Ch. 5: "Compendium of Matter", p. 256, by Ven. Bhikkhu Bodhi