Essays about: "orcinus orca"
Found 3 essays containing the words orcinus orca.
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1. Evolutionary Theories of Menopause
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : Menopause, the cessation of female reproduction well before death, is a puzzling phenomenon, because evolutionary theory suggests there should be no selection for survival when reproduction has ended. Nevertheless, menopause does exist in a limited number of species, and besides humans it has predominately evolved among toothed whales (Odontoceti). READ MORE
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2. Taxonomisk indelning och bevarande av späckhuggaren
University essay from SLU/Dept. of Animal Environment and HealthAbstract : Späckhuggaren är världens största delfin och en av havens toppredator. Trots att späckhuggaren uppvisar specialiseringar med avseende på social sammansättning, val av bytesdjur och ibland har morfologiska olikheter är den idag betraktad som en monotypisk art. READ MORE
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3. A comparison of the discrete call repertoires of Northeast Atlantic killer whales (Orcinus orca)
University essay from Institutionen för biologisk grundutbildningAbstract : Although Icelandic and Norwegian killer whales are thought to have been in contact prior to the collapse of the herring stock in the 1960s, the Northeast Atlantic killer whales currently seem to show high site fidelity. So far, photoidentification data have suggested movement of a few individuals between East Iceland and North Scotland, and two calls have been shown to be shared by the Icelandic and Norwegian populations. READ MORE
