New fossils hint that the roots of complex animal life stretch further back than previously…
Browsing: Evolution
Evolution is the fundamental biological process through which species change over generations, driven by mechanisms such as natural selection, mutation, genetic drift, and gene flow. It explains the diversity of life on Earth and how organisms adapt to their environments over time. Through the study of fossils, genetics, and comparative anatomy, scientists trace the origins and relationships of species, from microbes to humans. Evolutionary biology connects disciplines like genetics, ecology, and paleontology to reveal how complex traits arise, how new species form, and how life has persisted through billions of years of environmental change and planetary transformation.
Stored sperm may age faster than reproductive medicine has assumed, suggesting that shorter abstinence periods…
DNA carries the instructions for life, but additional molecular systems help determine how those instructions…
Remote Scottish islands turned tiny wrens into giant birds that may be evolving into new…
A new study suggests evolution stayed stuck for millions of years until sexual reproduction helped…
A newly discovered feathered dinosaur from China may help solve a long-standing mystery surrounding a…
Ancient Australian fossils indicate that the earliest eukaryotes depended on oxygen, providing new evidence that…
The discovery of Typhlichthys styx shows that cave-adapted species can continue evolving and splitting into…
Field notebooks from the late Richard Köhler allowed researchers to finally catalog a remarkable fossil…
A new evolutionary analysis suggests that modern blood and immune cells may preserve a 700-million-year…
A new study suggests T. rex and other giant predators evolved tiny arms because their…
Scientists say the mystery of why humans are so right-handed may trace back to our…
The human body evolved through adaptation and compromise, not perfect engineering. Human anatomy is less…
Researchers have identified tiny genetic “switches” that appear to play a surprisingly large role in…
Skin bones evolved multiple times in lizards, with goannas showing a rare case of lost…
A new mathematical study explores how evolutionary principles could help doctors stay ahead of treatment-resistant…
The “world’s oldest octopus” was actually a 300-million-year-old fossil impostor hiding its secret in tiny…
Crabs may owe their famous sideways walk to one evolutionary event that happened 200 million…