Top Results for Toothed

The narwhal is a medium-sized Arctic toothed whale known for its distinctive elongated spiral tusk, which is an overgrown left canine tooth that can reach up to three meters in length, primarily in males. Inhabiting the icy waters of the Arctic Atlantic and Russian regions, they migrate between coas...

The beluga whale is an Arctic and subarctic cetacean recognized by its striking white coloration, which provides camouflage among the ice, and its uniquely flexible neck due to unfused cervical vertebrae. It is highly vocal, producing a diverse array of clicks, whistles, and clangs that have earned...

Bigg's killer whale, formerly known as the transient killer whale, is a distinct ecotype of killer whale found in the eastern North Pacific Ocean. It is named after Canadian cetologist Michael Bigg, who pioneered the use of photo-identification for studying these marine mammals. Unlike fish-eating r...

Cuvier's beaked whale is a widely distributed marine mammal belonging to the beaked whale family, Ziphiidae. It is recognized for its deep-diving capabilities, holding the confirmed mammal record for both depth and duration, with documented dives exceeding 2,992 meters and lasting nearly four hours....

The Type B killer whale is an ecotype of orca native to the Antarctic and sub-Antarctic waters, frequently observed in regions with extensive pack ice. It is characterized by a visually distinct coloration, specifically a yellowish tint caused by an accumulation of microscopic diatom algae on its sk...

Eudimorphodon ranzii was an early pterosaur from the Late Triassic of what is now northern Italy. Described in 1973, it had a long tail, a relatively small wingspan, and an unusual dentition that included several kinds of teeth, with many bearing multiple cusps. The animal is important to studies of...

The Type D killer whale is a distinctive, morphologically unique ecotype of killer whale found in the sub-Antarctic oceans. It is most easily recognized by its unusually small, rounded white eye patch and a more bulbous melon compared to other killer whale populations. For decades, this rare form wa...

Anhanguera blittersdorffi is a species of toothed pterosaur from the Early Cretaceous Romualdo Formation of northeastern Brazil. Named in 1985, it is known from three-dimensionally preserved skull material and had expanded jaw tips forming a dental rosette suited to seizing slippery prey. It also po...

Type A killer whales are the largest of the several genetically and morphologically distinct ecotypes of orcas found in Antarctic waters. They inhabit open ocean environments rather than pack ice, where they specialize in hunting minke whales. These killer whales are physically characterized by a me...

Type C killer whales represent the smallest of the recognized ecotypes of orcas found in Antarctic waters. They are typically observed in the dense pack ice and specialize in foraging for Antarctic toothfish. This ecotype is visually distinguished by its notably slanted, forward-oriented white eye p...

The offshore killer whale is one of three identified ecotypes of killer whales found in the eastern North Pacific. Unlike the resident and transient ecotypes, these whales are typically found far from the coast in large groups. Their diet is believed to consist primarily of fish and sharks, though t...

Nothosaurus giganteus is a species of large nothosaur, a group of semi-aquatic marine reptiles that lived during the Triassic Period, approximately 240 million years ago. Nothosaurs were sauropterygians, belonging to the same broader lineage that later produced the fully aquatic plesiosaurs. Nothosa...

The spade-toothed whale (Mesoplodon traversii) is a poorly understood species of beaked whale belonging to the family Ziphiidae. It is considered one of the rarest cetaceans in the world, as no live individual has ever been definitively observed in its natural deep-ocean habitat. All existing knowle...

Baird's beaked whale (Berardius bairdii) is the largest species within the beaked whale family, reaching lengths of up to 11.9 meters, and inhabits the deep waters of the North Pacific Ocean. Named after the American naturalist Spencer Fullerton Baird, it is characterized by its long, tubular snout...

The northern bottlenose whale is a large species of beaked whale belonging to the family Ziphiidae. It is found exclusively in the cold and temperate waters of the North Atlantic Ocean, where it typically inhabits deep offshore waters and submarine canyons. This species is distinguished by its bulbo...

Ornithocheirus simus is an early Cretaceous toothed pterosaur from the Cambridge Greensand of England, known mainly from fragmentary jaw and rostral material. It is the type species of Ornithocheirus, but the genus and associated Cambridge Greensand specimens have a long taxonomic history, with many...

Blainville's beaked whale is a species of toothed whale belonging to the family Ziphiidae. It is found in tropical and temperate waters across the Atlantic, Pacific, and Indian Oceans. This marine mammal is named after Henri Marie Ducrotay de Blainville and is noted for its dense, heavily ossified j...

Arnoux's beaked whale (Berardius arnuxii) is a large toothed whale in the beaked-whale family Ziphiidae. It inhabits cold waters around Antarctica and the sub-Antarctic islands, where it is usually observed at sea rather than near shore. The species resembles the Northern Hemisphere Baird's beaked w...

Longman's beaked whale, Indopacetus pacificus, is a poorly known toothed whale in the family Ziphiidae. For much of the twentieth century, scientists recognized the species mainly from two incomplete skulls. Sightings at sea and strandings later provided evidence of living animals in the Indo-Pacifi...

The strap-toothed whale (Mesoplodon layardii) is a beaked whale in the family Ziphiidae found in the Southern Hemisphere. Adult males develop two long, strap-like teeth that grow across the upper jaw and can interfere with how far the mouth opens. The species is associated with deep-water habitat an...

Shepherd's beaked whale is a toothed whale in the family Ziphiidae associated with the Southern Hemisphere. It is distinguished among beaked whales by having a full set of functional teeth in both the upper and lower jaws. The species is also considered data deficient, reflecting limited knowledge o...

Sato’s beaked whale is a toothed whale scientifically known as Berardius minimus. It was recognized as a species distinct from Baird’s beaked whale and formally described in the late 2010s. The species is smaller than Baird’s beaked whale and is known from waters around Japan in the North Pacific. A...

Ramari's beaked whale is the common name for Mesoplodon eueu, a species of beaked whale formally described in 2021. The species was previously confused with True's beaked whale and is known from a small number of specimens and strandings rather than routine observations at sea. Its name honors Ramar...

Sowerby's beaked whale, Mesoplodon bidens, is a toothed whale in the beaked whale family, Ziphiidae. It was the first mesoplodont described by science, after naturalist James Sowerby examined a skull from a male that stranded in Scotland in 1800 and published the species in 1804. The species lives m...

The southern bottlenose whale, Hyperoodon planifrons, is a beaked whale in the family Ziphiidae and the southern counterpart of the northern bottlenose whale. It has a circumpolar range in the Southern Ocean, spending much of its time in deep water and approaching Antarctic ice during the warmer sea...

The pygmy sperm whale, Kogia breviceps, is a small toothed whale found in tropical, subtropical, and temperate seas worldwide. It reaches about 3.5 metres and is difficult to observe because it spends little time at the surface, usually avoids vessels, and can resemble the related dwarf sperm whale....

Perrin's beaked whale (Mesoplodon perrini) is a species of toothed whale belonging to the beaked whale family, Ziphiidae. It was officially identified as a distinct species in 2002 based on five specimens that stranded along the California coastline. The cetacean is named in honor of the American ma...

The dwarf sperm whale is a small toothed whale in the family Kogiidae and one of the two living species in that family. It has a compact body, a blunt head, and a lower jaw that is relatively small compared with the rest of the skull. The species lives in tropical and temperate offshore waters and i...

Sawbelly eels are deep-sea eels distinguished by serrated or ridged scutes along the underside of the body. They occur in mesopelagic and bathypelagic parts of tropical and temperate oceans, where little natural light reaches the water column. The name refers to their toothed-looking belly structure...