Related topics: fossil record

Scientists assemble largest-ever family tree for primates

Scientists at the University of Chicago and the University of Leeds have assembled the largest and most comprehensive family tree of the order primates, including both living and extinct species.

Scientists resurrect ancient enzymes to improve photosynthesis

A Cornell study describes a breakthrough in the quest to improve photosynthesis in certain crops, a step toward adapting plants to rapid climate changes and increasing yields to feed a projected 9 billion people by 2050.

Study IDs 1,000+ mislabeled, overlooked gene fragments in plants

Researchers have overlooked especially minuscule gene fragments that are critical to the assembly of cellular machinery and could help better trace the evolutionary history of plants, says a new study led by the University ...

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Phylogenetic tree

A phylogenetic tree or evolutionary tree is a tree showing the evolutionary relationships among various biological species or other entities that are believed to have a common ancestor. In a phylogenetic tree, each node with descendants represents the most recent common ancestor of the descendants, and the edge lengths in some trees correspond to time estimates. Each node is called a taxonomic unit. Internal nodes are generally called hypothetical taxonomic units (HTUs) as they cannot be directly observed.

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