Blue Whale

Name: Blue whale (Balaenoptera musculus)

Adult length: 24 – 33.5 m  
Weight: up to 190 tonnes

Blue Whales are the largest vertebrates ever to inhabit our planet. To see them in real life is special; to snorkel with them, as we have limited licences to do in Sri Lanka, is a chance to see them in their entire glory, swimming gracefully in their ocean realm. 

Blue Whale at the surface about to dive Sri Lanka underwater photography by Ralph Pannell Aqua-Firma

The  facts  on  blue  whales  are astounding; with a tongue the size of an elephant and a heart the size of a car, these magnificent whales feed exclusively on krill and are able to consume over 4 tonnes of this small, shrimp-like crustacean  in  a  day.  With  an  average  lifespan  of  80  –  90  years,  blue  whales  also  produce  the lowest sounds of any whale, vocalizing as low as 14 Hz at volumes up to 200 decibels. Sounds at this  frequency  and intensity  can  travel  for  thousands of miles  in  the  deep  ocean. These  sounds may  be used  to communicate  with other whales and their  low frequency pulses may be used  to navigate by creating a sonic image of distant oceanic features.

For our Free Guide to Blue Whales, please click on the request button below:

Click to Request our Free Guide to Blue Whales

Our guide includes:

- Easy step-by-step guide to recognising a blue whale
- The 3 geographic groups of blue whales
- Best places to see a blue whale
- Best places to swim, snorkel and freedive with a blue whale
- How Long are Blue Whales, Growth & how Long do they live
- Blue Whale Hunting
- Conservation status

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