Blue Whale
Balaenoptera musculus
Blue Whale Identification

Field marks:
Huge, mottled gray whale with small dorsal fin on lower back.
Flat topped head, splash guard in front of blowholes. Blow
up to 10m high every 1-2 mins. Dives about 3-5 minutes
(max 20 mins), tail raised slightly. Mostly single. Does not
breach.
Similar
species: Fin whale has
similar blow but lacks broad head and mottled color. Fins
whales do not raise tail flukes.
Habitat:
Coastal shelf to open ocean.
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