Asexual Reproduction in Animals  

Several species of animals, especially invertebrates, follow the asexual mode of reproduction. Mostly, it is used as a facultative mode of reproduction.  Common types of asexual reproduction in animals include:

1. Fission: it is seen in unicellular animals i.e. protozoans like Paramecium, Entamoeba, Leishmania, Plasmodium, Euglena, etc. 
2. Fragmentation: it is seen in starfish, Planaria, a few annelids, etc.
3. Budding: it is seen in Hydra, Jellyfishes, sea anemones, etc.
4. Regeneration: it is seen in crayfish, Echinoderms, Hydra, flatworms, etc.
5. Gemmulation: it is seen in sponges. 
6. Parthenogenesis: it is seen in wasps, bees, ants, aphids, some sharks, etc.