Blue Whale and Bryde's Whale

• Blue whale and Bryde's whale spotted in Maharashtra for first time since 1914. So it is now important for our papers. I have discussed about Blue and Bryde's whale as following:
• Blue Whale

  

  Blue Whale
  Source: Wikipedia

• Generally found in open oceans but comes near coast to feed.
• According to an estimate only 5,000 - 10,000 blue whales left in world
• Why is it coming to Indian coast?
• Yet to be discovered
• Conjecture(guess) is climate change or other changes in Sea or may be something else
• It is a marine mammal



Porpoise
Image: Wikipedia 



Manatees
Image: Wikipedia






Dugong
Image: Wikipedia

• Other Marine mammals are: seals, dolphins, whales, porpoises(relative of whales and dolphins), manatees, dugongs, otters, walruses, Polar Bears
• Brevicauda aka Pygmy Blue whale is found in Indian Ocean
• Blue whale is the largest animal ever known to have lived – larger than even dinosaurs!
• Estimated life span is min 80 years
• They make sounds – called vocalisation – the reason is unknown
• IUCN Red list calls Blue Whale endangered 
• Their natural predator is Orca

  

  Orca
  Source: Wikipedia

• Bryde's Whale

  

  Bryde
  Image: Wikipedia

• There is still no definitive information on this whale
• Its conservation status as per IUCN: Data Deficient
• They occur in Atlantic, Pacific and Indian oceans. 
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