Cetacean
Videos
Cetaceans are marine mammals belonging to the infraorder Cetacea, a secondarily aquatic clade under the order Artiodactyla that include whales, dolphins, porpoises and extinct groups such as Basilosau
Mother and baby sperm whale
Humpback stellwagen edit
Killerwhales jumping
GRNMS Right Whales
Orca
Videos
The orca, or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus, it is recognizable by its distinct pigmentation; being
Cetacean
…two short tusks. Narwhals have vestigial teeth alongside their tusk, which is present on males and 15% of females. A few toothed whales, such as some orcas, feed on marine mammals such as pinnipeds and other whales. Toothed whales have well-developed senses. Their eyesight and hearing are adapted for both…
Orcinus citoniensis fossil, an extinct species of the same genus, Museo Capellini in Bologna
Modern orca skeleton, Naturalis, Leiden
An orca leaps out of the water when swimming—a behaviour known as porpoising—in Hood Canal