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The killer whales employed a tail outward and tail-slapping defensive position against the bull sperm whale similar to that used by female sperm whales against attacking killer whales. [206] However, at some potential feeding sites, the killer whales may prevail over sperm whales even when outnumbered by the sperm whales.
Orcas also prey on larger species such as sperm whales, grey whales, humpback whales and minke whales. [ 83 ] [ 39 ] On three separate occasions in 2019 orcas were recorded to have killed blue whales off the south coast of Western Australia, including an estimated 18–22-meter (59–72 ft) individual. [ 88 ]
Livyatan is an extinct genus of macroraptorial sperm whale containing one known species: L. melvillei.The genus name was inspired by the biblical sea monster Leviathan, and the species name by Herman Melville, the author of the famous novel Moby-Dick about a white bull sperm whale.
Tourists on a boat in Australia were left stunned as they watched a pod of orcas chase and attack a group of sperm whales. A rare video shows the “titans of the ocean” battling.
Macroraptorial sperm whales occupied the same niche as killer whales (Orcinus orca). Using their large and deeply rooted teeth, wide-opening jaws, and great size, they likely fed on a variety of sea life, including fish, cephalopods, seals, and small whales and dolphins, occupying a niche similar to the modern day killer whale (Orcinus orca).
Orcas or killer whales have a cosmopolitan distribution and several distinct populations or types have been documented or suggested. Three to five types of orcas may be distinct enough to be considered different races , [ 1 ] subspecies , or possibly even species [ 2 ] (see species problem ).
Orca was likely Old Thom, scientists say, a frequent Cape Cod visitor. At first, he said, the orca was "quite a ways away, and then it came up again much closer to the boat.
A bull sperm whale is diving into the deep abyss, while a female colossal squid rockets through the depths. Both combatants sense each other – the squid sees the whale, while the whale's echolocation reveals the squid's location.