...The latter is an inhabitant of thenorthern seas only, but the sperm abounds in warmer waters, beingfrequently found in the sub-tropical oceans... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...I haveheard whalers assert that a wounded sperm in the death agony willvomit immense pieces of squid...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...
They are the most valuable of the cetacea, except perhaps thecachelot or sperm whale, as producing the greatest amount of oil andwhalebone...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...This blow seen under ideal conditions positivelylabels a large whale as a sperm whale...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Under some conditions humpback whales may beconfused with sperm whales at a distance...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Like sperm and humpback whales, they usually throwtheir flukes high into the air when beginning a long dive...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Under good wind conditions this feature alone may permitpositive identification of sperm whales even at considerabledistances...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...The flukes of sperm whales are broad and triangular inshape, are not concaved, but are deeply notched on the rearmargin...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...If only the back and tailflukes are seen, however, sperm whales may somewhatresemble humpback whales...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Beached pygmy sperm whales have also been observedto defecate a fine chocolate feces...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Dwarf sperm whales are dark steel gray on the back,grading to lighter gray on the sides, and fading to dull whiteon the belly...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Thedwarf sperm whale has been reported from at least Georgiasouth to St...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...It was assumed that testes that havenot descended, and that lie within the abdominal cavity, are not capable ofproducing viable sperm...
Charles L. Douglas 「Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado」
...Oviducts of several females were flushed by means of a pipetteto determine whether they contained sperm...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...No sperm were found in the oviducts of immaturefemales but one female of nearly adult size was observed incopulation with a mature male...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...By mid-May there are practically no sperm at anyplace in the tubules...
John M. Legler 「Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz」
...Ambergris is also producedfrom the body of the sperm whale...
Various 「Natural History in Anecdote」
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