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Ambergris in dried form. Ambergris (/ ˈ æ m b ər ɡ r iː s / or / ˈ æ m b ər ɡ r ɪ s /; Latin: ambra grisea; Old French: ambre gris), ambergrease, or grey amber is a solid, waxy, flammable substance of a dull grey or blackish colour produced in the digestive system of sperm whales. [1]
Spermaceti / s p ər m ə ˈ s iː t i ˌ-ˈ s ɛ-/ is a waxy substance found in the head cavities of the sperm whale (and, in smaller quantities, in the oils of other whales). Spermaceti is created in the spermaceti organ inside the whale's head. This organ may contain as much as 1,900 litres (500 US gal) of spermaceti. [1]
In 1954, the Universities Federation for Animal Welfare (UFAW) decided to sponsor systematic research on the progress of humane techniques in the laboratory. [2] In October of that year, William Russell, described as a brilliant young zoologist who happened to be also a psychologist and a classical scholar, and Rex Burch, a microbiologist, were appointed to inaugurate a systematic study of ...
Many laboratory animals, including mice and rats, are chronically stressed which can also negatively affect research outcomes and the ability to accurately extrapolate findings to humans. [ 33 ] [ 34 ] Researchers have also noted that many studies involving mice, rats and other rodents are poorly designed, leading to questionable findings.
Used to examine objects that are too small to be seen by the naked eye: Cell biology: Molecular cloning: Used to assemble recombinant DNA molecules and to direct their replication within host organisms. [12] Molecular biology: Northern blot: Used to study gene expression by detection of RNA (or isolated mRNA) in a sample. [13] [14] Molecular ...
United States whale oil and sperm oil imports in the 19th century Try pots in Ilulissat, Greenland. The main use of whale oil was for illumination and machine lubrication. [18] Cheaper alternatives to whale oil existed, but were inferior in performance and cleanliness of burn. As a result, whale oil dominated the world for both uses.
Shore-based work on South Georgia took place in the marine laboratory, Discovery House, built in 1925 at King Edward Point and occupied until 1931. The scientists lived and worked in the building, travelling half a mile or so across King Edward Cove to the whaling station at Grytviken to work on whales as they were brought ashore by commercial whaling ships.
A researcher fires a biopsy dart at an orca.The dart will remove a small piece of the whale's skin and bounce harmlessly off the animal. Cetology (from Greek κῆτος, kētos, "whale"; and -λογία, -logia) or whalelore (also known as whaleology) is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoises in the scientific ...