All items sold on this website are polyurethane resin replicas, made in USA. No real or natural bone is available on this site.
L. borealis Skull Replica measures 17.7 inches. L. borealis Skull Replica is museum quality polyurethane cast. Made in USA. Cast of California Academy of Sciences Specimen. 2-part skull (separate cranium and jaw). Known as Northern Right Whale Dolphin.
The L. borealis is a small, slender and finless dolphin species of cetacean found in cold temperate waters of the North Pacific Ocean.
Capensis Dolphin skull has a short, well-defined beak, a straight mouthline and 37 to 54 pairs of thin, small, sharp cone-shaped teeth in each jaw which are not externally visible. The skull is made up of a seperate cranium and jaw.
The Capensis Dolphin cetaceans are predominantly black and white beneath. They are smaller members of the delphinid family, oceanic dolphins, and very slender.
Charasticistics of the Northern Right Whale Dolphins is their lack of a dorsal fin; they are the only dolphin species in the North Pacific without one and its slender, elongated caudal peduncle.They possess a straight mouth line and a short, yet distinct beak. Their filppers are slightly curved with pointed tips.
The L. borealis is widely distributed in the temperate North Pacific in a band running from Kamchatka and mainland Japan in the west to British Columbia down to the Baja California Peninsula in the east.
It is not known with certainty if they follow a migratory pattern. However, individuals have been observed close to the Californian shore following their main food source, squid, in winter and spring.
They move in pods of several hundred individuals and sometimes congregate in groups of 3000 or more. The groups may also contain dusky dolphins and pilot whales (in the south) and Pacific white-sided dolphins (in the north).
These dolphins are some of the fastest swimmers (in excess of 40 km/h). L. borealis can become very boisterous and breach and tail-slap or become very quiet and almost undetectable at sea.
At high speed they can leap up to 7 meters across the ocean’s surface in a graceful bouncing motion.
Unlike most delphinidae, L. borealis vocalise without the use of whistles. Visual and audio surveys have confirmed that vocalisation primarily consists of clicks and burst pulses.
L. borealis have repetitive burst-pattern pulses that can be categorised and associated to different subgroups of L. borealis. These vocalisations may be used in the communication between individuals, in a similar way to signature whistles in other delphinid species.
Their gestation perioed is estimated at over 12.1 to 12.3 months. Calving appears to peak in July and August. Size of the calves is approximately 39.5 to 40.8 inches at birth. Calves get their adult coloration when they are about one year old. Before this, they are a paler version of the adults, and are mostly brown, grey or cream.
L. borealis is a least-concern species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild.
