Killer whale
Information for offshore regions and warmer waters is more scarce, but widespread sightings indicate the killer whale can survive in most water temperatures. They have been sighted, though more infrequently, in the Mediterranean, the Arabian Sea, the Gulf of Mexico, and the Caribbean. Over 50 individual whales have been documented in the northern Indian Ocean, including two individuals that were sighted in the Persian Gulf in 2008 and off Sri Lanka in 2015. Those orcas may occasionally enter the Red Sea through the Gulf of Aden. The modern status of the species along coastal mainland China and its vicinity is unknown. Recorded sightings have been made from almost the entire shoreline. A wide-ranging population is likely to exist in the central Pacific, with some sightings off Hawaii. Distinct populations may also exist off the west coast of tropical Africa, and Papua New Guinea. In the Mediterranean, killer whales are considered "visitors", likely from the North Atlantic, and sightings become less frequent further east. However, a small year-round population is known to exist in the Strait of Gibraltar, mostly on the Atlantic side. Killer whales also appear to regularly occur off the Galápagos Islands.
Whale watching
In the past this area was the US whaling industry's capital, particularly Nantucket, an island just off the coast of Massachusetts. Though strict laws prohibit molestation of these large wild mammals, it is not unknown for the whales to approach whale watching boats uninvited, particularly curious calves and juveniles: it is not unknown in particular, for example, for juvenile humpbacks to approach the boat and spyhop to get a better look at the humans aboard. In recent years it is also not uncommon to see these animals playing and feeding in harbors, including New York City or Boston where fish species of interest to the whales have lately returned in astonishing numbers. As of 2011, an expert from Cornell University has recorded the vocalizations of six whale species including the humpback, the fin whale, and the massive blue whale within close proximity of the Verrazano-Narrows Bridge in the lower portion of New York Harbor and there is at least one company offering marine life tours out of The Rockaway Peninsula in Queens. Due to these increasingly frequent visits, new laws address the safety of boaters, commercial fishermen, and the whales themselves: off the coast of Boston, for example, cargo vessels must slow down to protect the much slower North Atlantic right whale and there is talk of erecting an apparatus for the much more heavily trafficked waters surrounding New York City that can warn boats of a whale's presence and location so as to avoid accidentally striking the animal. Because of the relative diversity of whales and dolphins within easy access of shore, cetacean research takes place at Woods Hole Oceanographic Institute, and the Riverhead Foundation among other centers.
Eastern Canada has many whale watching tours in Newfoundland and Labrador, Nova Scotia or New Brunswick. Twenty-two species of whales and dolphins frequent the waters of Newfoundland and Labrador, although the most common are the humpback, minke, fin, Beluga and killer whales. Another popular whale-watching area is at Tadoussac, Quebec, where Belugas favor the extreme depth and admixture of cold fresh water from the Saguenay River into the inland end of the Gulf of Saint Lawrence. Humpbacks, minkes, fin and blue whales are also frequently seen off Tadoussac.The Bay of Fundy is an equally important feeding ground for large baleen whales and dozens of other creatures of the sea; it shares a population of migrating humpbacks with America and is a known summer nursery for mother right whales with calves.