. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . hile sucking away its blood? Itlives mostly free, hunting its prey, clinging to it for a while,and is carried about by it. Closely related to the lampreysare the hag fishes CMyxine) marine eellike fishes that attachthemselves by a suckerlike mouth to living fishes and graduallyscrape and eat their way into the abdominal cavity of the hags or borers ;l approach more nearly to the con- 347 348 EVOLUTION AND ANIMAL LIFE dition of an internal paras
. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . hile sucking away its blood? Itlives mostly free, hunting its prey, clinging to it for a while,and is carried about by it. Closely related to the lampreysare the hag fishes CMyxine) marine eellike fishes that attachthemselves by a suckerlike mouth to living fishes and graduallyscrape and eat their way into the abdominal cavity of the hags or borers ;l approach more nearly to the con- 347 348 EVOLUTION AND ANIMAL LIFE dition of an internal parasite than any other vertebrate. Andwhat about the flea? In its immature life it lives as a whitegrub or larva in the dust of cracks and crevices, of floors andcellars and heaps of debris; here it pupates, and finally changesinto the active leaping blood-sucking adult which finds its wayto the body of some mammal and clings there sucking it can jump off and hunt other prey; it leaves the host bodyentirely to lay its eggs, and yet it feeds as a parasite, at leastit conforms to the definition of parasite in the essential fact of.
Size: 1594px × 1568px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorkelloggvernonlvernonl, bookcentury1900, bookdecade1900
