것이다.야생 동물의 적 ‘근친퇴화’근친퇴화의 대표적인 사례가 플로리다 팬서(Florida Panther)다. 플로리다 팬서는 마운틴라이언(Mountain Lion) 또는 퓨마(Puma)로도 불리는 표범처럼 생긴 육식동물이다. 미국 남부, 특히 플로리다에서만 산다.플로리다 팬서는 오랜 시간 동안 외부 생태계와 단절돼 ...
plankton, and are perhaps best known for their enchanting songs which can be heard for hundreds of miles under the sea.Florida Manatee (Trichechus Manatus)The manatee is a graceful and peaceful creature. They feed on water plants, and inhabit the waterways and shores of Florida. Other species are found in the Indian ocean and the Gulf of Mexico. They are slow creatures, and are in danger of ...
hard by three very serious storms,as well as a number of minor ones.In 1965,Hurricane Betsy,after hitting the trip of Florida and wiping out the Keys,came straight up the mouth of the Mississippi and flooded the city of New Orleans and the low-lying parishes south of the city.In 1969,Hurricane Camille came in on the Mississippi Gulf Coast,all but deatroying everything on the coast with its 20 ...
the American Consul in Japan. In 1876 it was shown at the Philadelphia Centennial and then strongly promoted by a Florida farmer named C.E.Pleas.Livestock liked and were well-nourished by kudzu. It was ornamental and provided shade. It not only fixed nitrogen but was so good for holing soil in place that the U.S.Soil Conservation Service planted 73 million kudzu seedlings in the southern ...
Wayne K. Potts of the Center for Mammlian Genetics and Department of Pathology and Laboratory Medicine, University of Florida in Gainesville.It seems that the familiar Mus musculus domesticus doesn't live in solitary splendor, but builds bigger nests for two or more families. One mother's pups will be nursed by her and also by the other female rearing pups in the same nest. The scientists ...
eggs in female cones. According to recent work by botanist William Tang, of the University of Miami at Coral Gables, Florida, the cycad Zamia pumila uses other means for making reproduction possible.Unlike most gymnosperms, flowering plants (angiosperms) must attract animals that will pollinate them. One way is to warm up. When Tang examined the supposedly more primitive cycad, Zamia pumila, ...
the world and must be fought. But as Sheldon M. Schuster, head of the Malaria Genome Project at the University of Florida says, "You need to know the enemy in order to attack it effectively."(c) 1993, Los Angeles Times ...
of California, Riverside, discovered microscopic worms living on soil bacteria. Biologist E. Imre Friedmann, of Florida State University, found in porous sandstone a lichen called a cryptoendolith, meaning "hidden in rock" (where there's some moisture and warmth). These lichens grow very slowly and may be thousands of yeare old. Right now Antarctica is going into winter, which is so ...
ButterflyAll of nature is a matter of eating and being eaten, and, in 1990, two biologists of the University of Florida, John Glendinning and Lincoln Brower, have reported a particularly interesting case of edibility and survival.Consider the monarch butterfly. It is unusual in a number of ways. In the first place, it is a large butterfly, with a wingspread of some 4 inches. In the second ...
. The turtles that visit Ascension have nucleic acids that slowly changed, and so do the turtles that nest off Florida and those that nest off Venezuela.If, however, the turtles have always clung to their breeding grounds for tens of millions of years, each group would have undergone a different set of changes and the three sets of mucleic acids ought now to be far apart. Scientists nowadays ...
동아사이언스
디라이브러리
DS스토어
팝콘플래닛
