Consider the following species:

  1. Sperm whale
  2. Humpback whale 
  3. Blue whale
  4. White whale

Which of the above has/have been listed as endangered in the IUCN list?

Answer: [C] 3 Only

Sperm whale is the largest of the toothed whales and has been listed as vulnerable by IUCN. Humpback whale is one of the   larger rorqual species. It has been listed as least concern by IUCN. Blue whale is a marine mammal; it has been listed as endangered species by IUCN. White whale is a beluga whale and the largest toothed predator. It has been listed as near threatened in the IUCN list.

This question is a part of GKToday's Integrated IAS General Studies Module