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Ichthyosaur
Ichthyosaurs were giant marine reptiles that resemble a dolphin with large teeth. They lived during a large part of the Mesozoic era, and appeared about 250 million years ago (Ma), slightly earlier ... > more -
Canid hybrid
Canid hybrids are the result of interbreeding between two different members of the canine (dog) family (Canidae). The wolf (including the dingo), coyote, jackal, and domestic dog all have 78 ... > more -
Archaeopteryx
Archaeopteryx lithographica is the earliest and most primitive known bird. In the 1990s, the discovery of a number of well-preserved feathered dinosaurs solidified the link between dinosaurs and ... > more -
Feathered dinosaurs
The realization that dinosaurs are closely related to birds raised the obvious possibility that some dinosaurs had feathers. Fossils of Archaeopteryx include well-preserved feathers, but it was not ... > more -
Prokaryote
Prokaryotes are organisms without a cell nucleus, or indeed any other membrane-bound organelles, in most cases unicellular (in rare cases, multicellular). This set of characteristics is distinct from ... > more -
Mitochondrion
In cell biology, a mitochondrion (plural mitochondria) is an organelle found in most eukaryotic cells. Mitochondria are sometimes described as "cellular power plants," because their primary function ... > more -
Charles Darwin
Charles Robert Darwin (12 February 1809 - 19 April 1882) was a British naturalist who achieved lasting fame by convincing the scientific community of the occurrence of evolution and proposing the ... > more
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