• Scientific Name:
    Balaenoptera musculus
  • Adult Length:
    24 - 30 m (78 - 107 ft)
  • Blow:
    Largest of all: an enormous vertical column up to 10 m tall
  • Breaching:
    Only young known to breach, usually at 45° angle
  • Deep dive:
    Sometimes raises tail flukes
  • Group size:
    1 - 2, sometimes more when feeding
Blue Whales

Rare offshore.


The Blue Whale is the largest animal on the planet, but its size is not the easiest feature with which to distinguish it. lnstead, concentrate on surfacing sequence, fin size, and coloration. Confusion is most likely with the Fin Whale but on surfacing a Blue Whale exhales an even larger blow. The head then disappears to reveal a long rolling back before, finally, a tiny, stubby dorsal fin appears just before the animal sinks below the surface. Body color is bluish-grey but, unlike Fin Whale, it is usually covered with pale mottling.

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