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After exposure to the 1989 Exxon Valdez oil spill, two male resident killer whales experienced dorsal fin collapse, and the animals subsequently died. In 2002, the dorsal fin of a stranded killer whale showed signs of collapse after three days but regained its natural upright appearance as soon as the orca resumed strong normal swimming upon ...
Port and Starboard are a pair of adult male orcas notable for preying on great white sharks off the coast of South Africa. [1] The duo are identified as having rare and distinct collapsed dorsal fins and they are named for the nautical terms, as Port's fin collapses left and Starboard's collapses right. [2]
Tilikum was the largest orca in captivity. [8] He measured 22.5 feet (6.9 m) in length and weighed about 12,500 pounds (5,700 kg). [9] His pectoral fins were 7 feet (2.1 m) long, his fluke curled under, and his 6.5-foot-tall (2.0 m) dorsal fin was collapsed completely to his left side.
Killer whales are highly social animals, ... The scientists also discovered signs of orca tooth rake marks on the dorsal fin of a fin whale (Balaenoptera physalus). While there are no observations ...
The authors were able to identify the orcas involved by looking at distinctive features such as dorsal fins or scars on the animals’ bodies. ... Several of the killer whales were observed with ...
[24] [133] Nakai was one of the few captive males over the age of 10 to not have a collapsed dorsal fin, other males such as Ikaika and Trua are younger, have shorter fins, and have fully collapsed dorsal fins. Nakai's dorsal fin was nearly 5 feet (1.5 m) tall and was slightly leaning to the left.
An endangered orca vanished from a dwindling whale pod off the Washington coast, a conservation group said. The missing Southern Resident killer whale, K-26, was not seen by researchers during an ...
An individual orca can often be identified from its dorsal fin and saddle patch. Variations such as nicks, scratches, and tears on the dorsal fin and the pattern of white or grey in the saddle patch are unique. Published directories contain identifying photographs and names for hundreds of North Pacific animals.