Bryde's whale from Bangtaboon, Petchburi province, Thailand.

We used to think that whales were found in the deep ocean only, not in shallow water, so why did these whales come into the inner Gulf of Thailand?

Plankton bloom is caused by the water from the north that washes down rich nutrients to the sea, turning the water green. The plankton, particularly Noctiluca scintillans, or sea sparkle, draws numerous types of fish such as anchovy, mackerel and krill, which in turn draws whales to come and feed...

...Today there are an estimated 35 whales, 30 of which can be identified and named. Identification is based on their shape, the scars on the dorsal fins and body, markings on the skin, the look of the ventral pleats, the colour and markings of the jaws...

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