Dinosaurs are one of the most important ancient creatures attracting people's attention. The recognition of dinosaur gradually gets close to neontology which considers dinosaurs as a sort of living creatures to understand and study, and focuses on their reproduction, physiology and zoology. Recent researches show that the egg-laying mechanism restricts the zoology and evolution of the Mesozoic dinosaurs, but promotes producing diverse breeding strategies, including nestling behavior, field power, large-scale change of the individual's living condition, higher rate of reproduction and so forth.
The latest research fruit,Lay, Brood, Repeat: Nest Reuse and Site Fidelity in Ecologic Time for Two Cretaceous Troodontid Dinosaurs，by Dr. Jin Xingsheng, vice-curator of Zhejiang Museum of Natural History, China (ZMNH), Dr.David Varricchio from US Montana State University and other members, has published in Journal of Vertebrate Paleontology (JVP). The paper studied two cretaceous troodontid dinosaur fossils from Zhejiang, China and Montana State, US respectively, and argued that the Troodontid Dinosaurs had the behavior of nest reuse and also the fidelity on their breeding sites.
Troodontidae is a group of bird-like theropod dinosaurs. During most of the 20th century, troodontid fossils were few and scrappy and they have therefore been allied, at various times, with many dinosaurian lineages. More recent fossil discoveries of complete and articulated specimens (including specimens which preserve feathers, eggs and embryos, and complete juveniles), have helped to increase understanding about this group.(From Wikipedia)
A.Superimposed Two Nests of Troodontid Dinosaur Fossils (ZMNH Collected,ZMNHM8711)
B.Formation Diagram of ZMNHM8711
C.Superimposed Two Nests of Troodontid Dinosaur Fossils (Specimens from US Montana State,MOR 676)