Prototheria

ASSOCIATED FACTORS

This comprises the single order called Monotremata that has following features:

  • Testes are abdominal and cloaca is present.
  • Mammary glands are present without nipples.
  • They lack external ear.

Examples

  • Spiny anteater/Echidna and Duck billed platypus
Last modified: Tuesday, 18 October 2011, 10:32 AM