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[32] [39] Antarctic orcas may have pale grey to nearly white backs. [37] Some Antarctic orcas are brown and yellow due to diatoms in the water. [21] Both albino and melanistic orcas have been documented. [32] Sexual dimorphism between male (top) and female (bottom) killer whales. Pectoral fins, dorsal fin, and flukes are larger in adult males
This fall, a hearty run of chum salmon drew the pod of killer whales to Puget Sound waters, she said. The whale with a salmon on its head was almost assuredly getting enough to eat at the time ...
A few toothed whales, such as some orcas, feed on mammals, such as pinnipeds and other whales. Toothed whales have well-developed senses – their eyesight and hearing are adapted for both air and water, and they have advanced sonar capabilities using their melon. Their hearing is so well-adapted for both air and water that some blind specimens ...
Six species of dolphins have the word "whale" in their name, collectively known as blackfish: the orca, or killer whale, the melon-headed whale, the pygmy killer whale, the false killer whale, and the two species of pilot whales, all of which are classified under the family Delphinidae (oceanic dolphins). [6]
The researchers’ analysis revealed exactly how the killer whales, often hunting as a group, subdue the whale shark. First, the orcas use their bodies to hit a whale shark at high speed.
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 ).
The research vessel Noctiluca of the Northwest Fisheries Science Center in close proximity to an orca. The southern resident orcas, also known as the southern resident killer whales (SRKW), are the smallest of four communities of the exclusively fish-eating ecotype of orca in the northeast Pacific Ocean.
These orcas have a killer fashion sense. Always head of the curve, blackfish off the West Coast are bringing back a fad that hasn’t been seen in the last four decades: salmon hats. The ocean’s ...