Persian Gulf Bryde's whales, these once common residents can still can be seen in deeper marginal seas such as Gulf of Aden, Israel coasts, and in the Strait of Hormuz. Other species such as the critically endangered Arabian humpback whale, (also historically common in Gulf of Aden and increasingly sighted in the Red Sea since 2006, including in the Gulf of Aqaba), omura's whale, minke whale, and orca also swim into the gulf, while many other large species such as blue whale, sei, and sperm whales were once migrants into the Gulf of Oman and off the coasts in deeper waters, and
Piracy in the Persian Gulf bin Muhammad Al Qasimi argues in his book "The Myth of Piracy in the Gulf" that the allegations of piracy were simply excuses used by the British to impose imperialism. Piratical activities were common in the Persian Gulf from the late 18th century to the mid 19th century, particularly in the area known as the "Pirate Coast" which spanned from modern-day Qatar to Oman. Piracy was alleviated from 1820 with the signing of the General Maritime Treaty, cemented in 1853 by the Treaty of Maritime Peace in Perpetuity, after which the Pirate Coast began to be known by the British