Climatic effects of the impact and volcanism scenarios for the extinction of dinosaurs are investigated in a modelling paper.

Species may undergo minor adaptation through Darwinian processes, but this comes at the cost of genetic deterioration.

Pseudogenes are important in gene regulation and other activities.

Changing a DNA sequence can affect a protein even if it does not change the amino acid sequence.

Claims of dinosaur DNA stir controversy

Cambrian arthropods were as complex as living species

The "Cambrian explosion" is a term used to describe the abrupt appearance in the fossil record of major animal phyla, without intermediate forms in lower layers. This pattern of abrupt appearance can be observed for many groups of organisms, including crinoids (sea lilies).

Chromosomes regulate their own structure through their sequences of non-protein-coding DNA.

Fossilized crane fly eyes discovered to be calcified and have melanin

Cichlid fish in Nicaraguan lakes show evidence of rapid change.

An average of 70 mutations occur in each person.

Fossils are remains or other evidence of organisms that lived in the past and are preserved in the rocks. How did they form and what can we learn from them?

The specific genes have been identified that cause a lizard to match the black rocks it lives on.

Humans have unique “developmental control genes” that distinguish them from chimpanzees and other animals

Is the genetic basis of loss of flight due to mutations in protein-coding genes or in regulatory genes?

Comparison of genomes of jellyfish and sea anemones highlights the importance of orphan genes in taxonomically close organisms.

Is a recent fossil found in Peru evidence for transitional forms in an evolutionary sequence?

The abrupt appearance of trilobites in Cambrian strata and their absence in Precambrian sediments is a real feature of the rock record and not due to failure of preservation in Precambrian rocks.

A newly described Cambrian locality in China has added more than 50 new species to our knowledge.

The study of fossils and the associated rocks in which they are preserved gives us information about ancient conditions in which organisms lived, called paleoenvironments, and the pathways leading to their fossilization.