Barnacles Dolphin Centre at Tin Can Bay is one of the few places where you can feed the rare Indo-Pacific humpback dolphins for free.

海豚 壶中心在天湾是少数能在这里，你可以养活稀有印度太平洋驼背豚，为免费…

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While other species such as Indo-Pacific humpback dolphins and Indo-Pacific bottlenose dolphins are not currently threatened, their future can by no means be taken for granted.

BBC: NEWS | South Asia | Bangladesh's majestic dolphins at risk