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Archive | Edu-blog

EvolutionOfDolphinsAndWhales

The origins of marine mammals

The origins of marine mammals Although all marine mammals evolved from land mammals, it may surprise some that each group of marine mammals has its own unique ancestry. There are three groups of marine mammals: the cetaceans (whales, dolphins and porpoises), the pinnipeds (fur seals, sea lions, walruses and seals) and the sirenians (dugongs and […]

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ORCA_Foundation_humpback_whale

ORCA TIMES- Quarterly Report- April to June 2018

Over the last three months, ORCA has continued to grow and improve with the enthusiasm and commitment of our team. Since our last newsletter, our team has welcomed a new member, Cameron Reeder. His young, vibey energy is a welcome addition to the team. We have also since seen the launch of our humpback dolphin project […]

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New Chapter- Orca Foundation quarterly report 2018

A NEW CHAPTER The start of 2018 brought a brand new team to the ORCA Foundation Volunteer Program. With 3 new staff members (two experienced marine biologists and a conservationist) the program now hosts a wide range of marine related research, conservation and education activities. January was just crazy! The new team had to move […]

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SRW-Pigment-blog

Southern right whale pigmentation patterns

Southern right whale pigmentation patterns Southern right whales are usually mostly black in colour and were often referred to as “black whales” by open-boat whalers. Most individuals also have a white blaze on their bellies, which can vary in size from a small spot to a large irregularly-shaped marking that may extend up the side […]

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Cooperative feeding in cetaceans

Cooperative feeding in cetaceans Cooperative feeding comes about when two or more individuals effectively capture more and/or bigger prey items and suffer fewer costs together than alone. A number of mammal species, and even one bird species has been reported to undertake cooperative hunting, which could range from simultaneous chases, or clearly coordinated attacks. Coordinated […]

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Cetacean Sleep

Cetacean sleep Cetaceans, or whales and dolphins, have a pretty unique way of getting some shuteye. These marine mammals actually only rest one half of their brain at a time when sleeping, in what is known as unihemispheric slow-wave sleep. While one hemisphere of the brain rests, the other remains alert. The hemispheres are alternated […]

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15.1 A microplastic found in a hake

July research blog

July research blog Exciting news for the elasmobranch egg case project! Oceans Research (http://www.oceans-research.com/) in Mossel Bay will be collaborating with us on this project, and will be starting monthly egg case collections at a site in Mossel Bay. This is a wonderful opportunity to partner with a fantastic research organization and investigate what egg […]

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