Consider the following animals: 1. Sea cow 2. Sea horse 3. Sea lio

Consider the following animals:

  • 1. Sea cow
  • 2. Sea horse
  • 3. Sea lion

Which of the above is/are mammal/mammals?

1 only
1 and 3 only
2 and 3 only
1, 2 and 3
This question was previously asked in
UPSC IAS – 2013
The correct option is B, meaning that Sea cow and Sea lion are mammals, while Sea horse is not.
– Sea cows (which include manatees and dugongs) are aquatic mammals belonging to the order Sirenia.
– Sea horses are small marine fish belonging to the genus Hippocampus. They are a type of fish, not a mammal.
– Sea lions are marine mammals characterized by external ear flaps, long foreflippers, the ability to walk on all four flippers on land, and short, thick hair. They belong to the family Otariidae.
Mammals are characterized by features such as having mammary glands (producing milk for young), being warm-blooded, having hair or fur, and typically giving birth to live young. Fish are aquatic vertebrates characterized by gills, fins, and usually scales, and they are cold-blooded.
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