Social unit of male sperm whales

Unlike fin whales, sperm whales usually raise their flukes out of the water before starting a dive. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Sperm whale Physeter macrocephalus populations were expected to rebuild following the end of commercial whaling. No evidence exists of population fragmentation across the region D. Sperm whales mainly inhabit deep waters of all oceans, although they prefer waters between and 1.
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Sperm whale

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Sperm whales can remember their friends over many years

Search for this keyword. Her social connections with members of her own unit have decreased with age, in particular her measure of connectedness has dropped since the mids. Gero Sperm Whale IN: Whitehead Calves as social hubs: Calves as social hubs:
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Physeter macrocephalus (Mediterranean subpopulation) (Sperm Whale)

Gero , unpublished data , a vocalization typically made by mature males [ 44 ]. Dorsal fin is absent, but there is a low and thick dorsal hump, followed by a series of dorsal crenulations on the dorsal ridge. Between 15 and 18 meters in adult males and 8 and 17 meters in adult females; between 3,5 and 4,5 meters at birth. But they also have rich and varied social lives. Results There were 16 units with two or more reliable estimates of size in different years between and range: Between the upper jaw and the spermaceti organ there is a structure called junk which is made of connective tissue and spermaceti oil.
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To ease their passing of these sharp objects through the intestines the whales secrets a solid waxy substance called Ambergris. Gero The surprisingly familiar family lives of sperm whales. Individual, unit and vocal clan level identity cues in sperm whale codas. A comprehensive guide to their identification. The mothers, Pinchy and Mysterio , both show sharp drops in strength and connectedness in the first year of their new calves' lives figure 2. If we extrapolate these results to the rest of the basin, the whole population would be composed by 2. The Group of Seven from to laid out in a probable pedigree S.
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