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On March 9, 1976, the Italian racing yacht Guia III was rammed and sunk by an orca off the coast of Brazil. The vessel was hit once by an individual out of a pod of four to five orcas. The crew of six successfully escaped to a liferaft. The whales showed no reaction to the escaping humans a few meters away from them.
Attacks by orcas, or killer whales, on boats in the Strait of Gibraltar are increasing. But why are these seemingly peaceful creatures becoming dangerous.
The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. It is the only extant species in the genus Orcinus and is recognizable by its black-and-white patterned body. A cosmopolitan species, they are found in diverse marine environments, from Arctic to Antarctic regions to tropical seas.
The interactions between marine mammals and sonar have been a subject of debate since the invention of the technology. Active sonar, the transmission equipment used on some ships to assist with submarine detection, is detrimental to the health and livelihood of some marine animals. [ 1 ] Research has recently shown that beaked and blue whales ...
Dusky dolphins measure about 7 feet (2 meters) long and weigh up to 187 pounds (85 kilograms). By comparison, an orca measures up to 32 feet (10 meters) long and can weigh as much as 11 tons (10 ...
The wildlife of Alaska is both diverse and abundant. The Alaskan Peninsula provides an important habitat for fish, mammals, reptiles, and birds. At the top of the food chain are the bears. Alaska contains about 70% of the total North American brown bear population and the majority of the grizzly bears, as well as black bears and Kodiak bears.
Cat behavior includes body language, elimination habits, aggression, play, communication, hunting, grooming, urine marking, and face rubbing. It varies among individuals, colonies, and breeds. Communication and sociability can vary greatly among individual cats. In a family with many cats, the interactions can change depending on which ...
Trua is a male orca born at SeaWorld Orlando on November 23, 2005. His parents are Takara and Taku, and his grandfather is Tilikum. Takara and Kohana (his sister) had just been moved to SeaWorld Orlando when she and Taku met. At the time of Trua's birth, Kohana was by Takara's side and thus acted as the midwife.