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Pilot whales are cetaceans belonging to the genus Globicephala. The two extant species are the long-finned pilot whale ( G. melas) and the short-finned pilot whale ( G. macrorhynchus ). The two are not readily distinguishable at sea, and analysis of the skulls is the best way to distinguish between the species.
The false killer whale ( Pseudorca crassidens) is a species of oceanic dolphin that is the only extant representative of the genus Pseudorca. It is found in oceans worldwide but mainly in tropical regions. It was first described in 1846 as a species of porpoise based on a skull, which was revised when the first carcasses were observed in 1861.
Orca gladiator (Bonnaterre, 1789) The orca ( Orcinus orca ), or killer whale, is a toothed whale that is the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus. Orcas are recognizable by their black-and-white patterned body.
North Pacific. Research off the west coast of Canada and the United States in the 1970s and 1980s identified the following three types: Resident (fish-eating) orcas: The curved dorsal fins are typical of resident females. Resident: These are the most commonly sighted of the three populations in the coastal waters of the northeast Pacific.
The most common natural predator of sperm whales is the orca (killer whale), but pilot whales and false killer whales sometimes harass them. [195] [196] Orcas prey on target groups of females with young, usually making an effort to extract and kill a calf. The females will protect their calves or an injured adult by encircling them.
Short-finned pilot whales can reach up to 7.2 m (24 ft) in length and weigh up to 4,000 kg (8,800 lb), making it the third-largest species of oceanic dolphin, behind the orca and long-finned pilot whale. When they are born, short-finned pilot whales weigh about 60 kg (130 lb) at a length of 1.4 to 1.9 m (4 ft 7 in to 6 ft 3 in).
The long-finned pilot whale, or pothead whale (Globicephala melas) is a large species of oceanic dolphin. It shares the genus Globicephala with the short-finned pilot whale (Globicephala macrorhynchus). Long-finned pilot whales are known as such because of their unusually long pectoral fins.
He added that orca, also known as killer whales, are protected in New Zealand and it is illegal to swim with them. “Orca are immensely powerful animals, and this really could have ended horribly ...