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Paleontology

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Fossils Show Anacondas Reached Modern Size 12.4 Million Years Ago and Stayed Giant

Researchers say semi‑aquatic living with broad diets likely buffered the species through past climate shifts.

Fossil Endocasts Show Pterosaurs Evolved Flight-Ready Brains Independently of Birds

67-Million-Year-Old Alberta Fossil Recasts Otophysan Fish Origins

New Chemical Fossils Strengthen Case That Sponges Were Earth’s Earliest Animals

310-Million-Year-Old Fossil Reveals Earliest Tongue-Bite in Ray-Finned Fish

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

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

Cambrian Fossil Reveals Spider Brain Structure and Sea Origin for Arachnids

Landmark Study Chronicles 35-Million-Year Evolution and Extinction of Sloths

Study Confirms Teeth Evolved from Sensory Armor of Ancient Fish