There have been many animals once thought extinct that are not; they include the Christmas Island shrew, Flying Fox (Solomon Islands), and the Australian central rock rat. Sometimes a particular species will become extinct only in a particular area but can be found elsewhere. This is referred ...
Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia. extinct no longer in use; no longer existing: Many animals are now extinct. Not to be confused with: extant –still existing; not destroyed: There is only one extant copy of the book. extent –range; distance; measure;...
“Rat-kangaroos, like bettongs and potoroos, are an ideal group of animals for testing skull biomechanics because they each have different shaped skulls and specialize in very different food groups,” says Dr. Rex Mitchell, lead author of a new article published in theJournal of Experimental Bi...
Extinction is the state or process of a species, large group, or family of animals being or becoming extinct, which means there are no more living members. To become extinct essentially means to disappear or cease to exist. It can happen to an entire species, meaning that all species are ...
C.Competition with other animals.D.Changes of the island's climate.( )4. What does the phrase "as dead as a dodo" mean today?A.Something that is very much alive.B.As dead as a dodo cannot be found. 相关知识点: 试题来源: 解析 1. C 2. B 3. B 4. B 答案解析: 1. 文章...
However, just because most animals eventually go extinct doesn’t mean we should not be concerned with their conservation status. When species are unnaturally dying out, to maintain the planet’s ecological balance, we must make an effort to ensure their survival....
a dinosaur's weight. These methods were long thought to be at odds with each other, but Campione's team found that both techniques are actually quite accurate.Using limb circumference(肢体周长) to work out an animal's mass is already widely used across a variety of modern land animals. The...
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A coelacanth (pronounced SEE-luh-kanth) is a large, primitive fish found in the Indian Ocean. Described as a "living fossil" and once thought to be extinct, this deep-sea fish is believed to form one of the "missing links" in the evolution from fish to land animals. ...
Weighing a dinosaur is no easy task.These extinct creatures were massive,and for the most part,all that remains are their bones,as their organs and skin have long since disappeared.However,new research has found more than one way to measure the mass of these creatures. In a paper published...