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Evolutionary Biology

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Andean Mouse Shows How Mammals Survive Extreme Altitude

The July 9 study identifies physiological and genetic traits that let mice survive thin air, offering clues for understanding human hypoxia.

Study Finds Tight Birth-Canal Fit Is Common Across Many Primate Species

Pollen-Eating Heliconius Butterflies Live Months Longer Than Close Relatives

Venus Flytrap Closes by Rapidly Softening Its Outer Cell Walls

520-Million-Year-Old Fossils Confirm Bryozoans in the Early Cambrian

Octopuses Learn to Use Mirrors to Locate Hidden Prey

Study Finds Masturbation Is Common and Natural Across Many Bird Species

Researchers Name Giant Mosasaur Tylosaurus Rex After Museum Re‑examination

Giant Cretaceous Octopuses May Have Ruled the Seas, Science Study Finds

AI Scans Reveal Giant Cretaceous Octopus Relatives Nearly 20 Meters Long

Giant Cretaceous Octopuses Identified From 27 Fossil Beaks

Fossil Beaks Point to Giant Cretaceous Octopuses, Study Says

Peer-Reviewed Study Detects Human-Like Vowel Patterns in Sperm Whale Clicks

Famed ‘Oldest Octopus’ Reclassified as Nautiloid After High-Energy X-Ray Study

Famed ‘Oldest Octopus’ Fossil Reclassified as a Nautiloid

500-Million-Year-Old Chelicerate Pushes Back Spider Lineage by 20 Million Years

X‑Chromosome Study Points to Sex‑Biased Human–Neanderthal Pairings Led by Neanderthal Males

Tiny Argentine Dinosaur Fossil Reshapes Alvarezsaur Evolution and Global Spread

T. Rex Likely Ran Toe-First, Study Finds, Raising Speed Estimates by About 20%

Reanalysis of Lost WA Fossils Splits Iconic Triassic Amphibian Into Two Species