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The family Balaenidae, the right whales, contains two genera and four species. All right whales have no ventral grooves; a distinctive head shape with a strongly arched, narrow rostrum, bowed lower jaw; lower lips that enfold the sides and front of the rostrum; and long, narrow, elastic baleen plates (up to nine times longer than wide) with fine baleen fringes.
The sperm whale or cachalot (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator.It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia.
Whales use these combs for filter feeding. Whales are the only vertebrate group to use this method of feeding in great abundance (flamingos and crabeater seals use similar methods, but do not have baleen), and it has allowed them to grow to immense sizes. The Blue Whale, the largest animal ever to live, is a baleen whale. More on baleen
Cetaceans are long-lived animals (particularly whales), with a theoretically low mortality rate once they reach adulthood and virtually no predation, even if they remain exposed to diseases and parasites (which are thought to be involved in 25% of cetacean deaths in the Mediterranean, particularly when their proliferation becomes pathological ...
A stranding is when a cetacean leaves the water to lie on a beach. In some cases, groups of whales strand together. The best known are mass strandings of pilot whales and sperm whales. Stranded cetaceans usually die, because their as much as 90 metric tons (99 short tons) body weight compresses their lungs or breaks their ribs. Smaller whales ...
Narwhals Beluga whales. Balaenidae [1] Bowhead whale (ᐊᕐᕕᖅ, arviq) Balaena mysticetus [2] [3] Balaenopteridae [1] Fin whale Balaenoptera physalus [4] Sei whale Balaenoptera borealis [5] Blue whale (ᐊᕐᕕᖅ ᓂᐊᖁᕐᓗᖕᓂᖅᓴᖅ, ᐃᐸᒃ, arviq niaqurlungniqsaq, ipak) Balaenoptera musculus [3] [6] Common minke whale ...
The humpback that washed up dead in Long Beach this week has been identified as NYC0393, a playful and spirited cetacean who had become familiar to whale watchers last summer for her acrobatic ...
This category contains articles about Cetacea, including whales, dolphins and porpoises. Subcategories This category has the following 21 subcategories, out of 21 total.