Q. Which of the following species of fauna are mammals?
  1. Honey badger
  2. Killer whale
  3. Colugo
Select the correct option from the codes given below:

Answer: 1, 2 & 3
Notes: Honey badger (Mellivora capensis), killer whale (Orcinus orca), and colugo (order Dermoptera) are all mammals. Honey badger is a member of Mustelidae, killer whale is a marine mammal in the dolphin family, and colugo is a gliding mammal of Southeast Asia. All share key mammalian traits such as hair and mammary glands.