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Evolutionary Biology

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Male Octopus Mating Arm Doubles as Hormone Sensor, Study Finds

The study points to sensory cues as a key to precise mating, a possible engine of octopus diversity.

PNAS Study Finds Ancestry Strongly Limits Protein Evolution

Tiny Spanish Dinosaur Foskeia Pelendonum Formally Described, Recasting Parts of the Ornithischian Family Tree

Jellyfish and Sea Anemones Without Brains Shown to Sleep

Oldest Ankylosaur Revealed With Meter-Long Neck Spikes and Early Tail Weapon

Giant Theropods Developed Diverse Skull Biomechanics, Study Shows

First Soft-Bodied Cambrian Fossils Found in Grand Canyon Reveal Evolutionary ‘Goldilocks Zone’

Mirasaura Grauvogeli Shows Feather-Like Crest Evolved Separately in Triassic Reptiles