Q. Consider the following fauna:

1. Sea cow
2. Sea lion
3. Sea pig
4. Sea horses

Which of the above is/are mammal(s)?
Answer: 1 & 2 Only
Notes: The Steller's sea cow, Hydrodamalis gigas, is an extinct herbivorous marine mammal. It is the largest member of the order Sirenia. Sea lions are sea mammals characterized by external ear flaps, long fore flippers, the ability to walk and short & thick hair. Sea pigs are in fact a type of sea cucumber. Sea cucumbers are echinoderms. Seahorses are fish. 

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.