True’s beaked whales are little known members of the beaked whale family, Ziphiidae. Shying away from humans and hard to spot with their small dorsal fins, it’s difficult to say exactly what life is like for Arnoux’s beaked whales. Little is known about this family of cetaceans ; one species was first described in 1995, two others are known only from skeletal remains, and the bodies of undescribed species occasionally drift ashore. Beaked whales range in length from just under 400 cm in the Pygmy beaked whale (Mesoplodon peruvianus) to 1200 cm in Baird’s beaked whale (Berardius bairdii).In all species, the maximum girth is midway between the tip of the rostrum and the tail, resulting in a spindle-shaped body that is unique to beaked whales (Balcomb, 1989, Heyning, 1989, Mead, 1989a, Mead, 1989b, Mead, 1989c).
Beaked whale, (family Ziphiidae), any of 23 species of medium-sized toothed whales that have an extended snout, including the bottlenose whales. beaked whales have teeth that emerge from their lower jaw; most individuals (especially males) are heavily scarred due to male competition; Can be confused with. The globicephalids and the delphinids from the warmer waters migrate into the northern areas in summer season. Arnoux’s beaked whales are known to enter pack-ice and are thought to live close to the ice edge in summer and farther out in open water during winter. 1. Several new species have been recognized in recent years, some of which have only been identified by analysis of bones from stranded whales. large size and coloration of Baird’s beaked whales is comparable with minke whales, but Baird’s beaked whales have a pointed beak, no baleen, and are typically found in groups.
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.. What’s life like for Arnoux’s beaked whales? The name is due to their beak-like mouth tip which is elongated making them extreme divers. The Baird's beaked whale is found only in the northern areas in the season from spring to autumn. There have been sightings of individual whales, but usually they are encountered in larger groups of 6 to 10, and sometimes as many as 80 whales. They can be found in deep, warm, temperate waters of the North Atlantic Ocean as well as at least two other areas in the Southern Hemisphere. There have been many sightings of Arnoux’s beaked whales in the Cook Strait during summer, and sightings of large pods were reported along the western Antarctic coast during spring. Beaked whales live in deep waters, often offshore which makes sightings and research difficult. The killer whales is relatively abundant in the northern areas. Beaked Whales (Ziphiidae) Cuvier's beaked whale is the deepest diving marine animal. The sperm whale is a pelagic mammal with a worldwide range, and will migrate … Baird's beaked whales are hunted in Japan and whalers had often referred to two types of whales, one of which was a darker, smaller version.