资讯

During the early Paleocene, about 66 to 56 million years ago, a species of small mammal known as Mixodectes pungens […] ...
New discoveries shed light on an ancient human species and its evolutionary links to modern humans. Stephen Chester, ...
The research, published in the National Science Review, details the discovery of Sinosauropteryx lingyuanensis, a new species ...
Mixodectes belonged to an extinct family known as mixodectids and lived during the Paleocene epoch. This geological epoch followed the Cretaceous-Paleogene extinction event that killed off non-avian ...
The researchers compared the new Mixodectes pungens skeleton to those of other placental mammals, including plesiadapiforms, euprimates, treeshrews, and colugos. This comparison illuminated its ...
All mammals have skeletons, like this cat. Many animals have skeletons to support and protect their body and to help it move. The human skeleton is made of bones which grow as we grow. Your bones ...