TF阅读真题第941篇Megapode Approaches to Incubation Megapode Approaches to Incubation 题目：     The megapodes are a family of birds with unusually large legs. Alone am...

  题目： Endangered Coral Reefs     Reef-building corals are made by polyps (tiny sea animals) that build on the skeletal remains of previous generations provid...

TF阅读真题第683篇The Solnhofen limestones and Archaeopteryx

TF阅读真题第729篇Forming the Building Blocks of Life

  Bartering was a basic trade mechanism for many thousands of years; often sporadic and usually based on notions of reciprocity, it involved the mutual exchange of commoditi...

TF阅读真题第698篇European Cities and the Rise of Commerce

TF阅读真题第815篇Archaeopteryx and Bird Evolution

TF阅读真题第778篇The Evolution of Reptiles and Therapsids

Opera in Seventeenth-Century Venice     Opera, a form of drama set to music and featuring vocal performance supported by an orchestra, was born in Italy at the very end ...

Horns in Beetle Competition       Intraspecific competition-that is, competition between members of the same species for limited resources-can be a complex phenome...